physical review research iso4

Physical Review Research

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• Editorial Team

Volume 4, Issue 2

April - june 2022, editorials and announcements, editorial: introducing perspective articles, jan michael rost, thomas pattard, uwe c. täuber, dirk jan bukman, raissa d'souza, jian-wei pan, nicola spaldin, and juan-josé liétor-santos, phys. rev. research 4 , 020001 (2022) – published 18 april 2022, highlighted articles, featured in physics editors' suggestion, autoresonant excitation of space-time quasicrystals in plasma, vadim r. munirov, lazar friedland, and jonathan s. wurtele, phys. rev. research 4 , 023150 (2022) – published 25 may 2022, synopsis: carving a space-time crystal in a plasma.

The authors show that space-time quasicrystalline structures can be created in plasmas through autoresonant excitation of nonlinear ion acoustic waves.

Show Abstract

• Nonlinear Dynamics
• Plasma Physics

Featured in Physics

Isotope ratio dual-comb spectrometer, alexandre parriaux, kamal hammani, christophe thomazo, olivier musset, and guy millot, phys. rev. research 4 , 023098 (2022) – published 5 may 2022, synopsis: a quick way to measure isotope ratios.

A new laser-based method allows scientists to detect and determine the isotope concentration of different chemicals in a gas in a short time.

Editors' Suggestion

Optical n -insulators: topological obstructions to optical wannier functions in the atomistic susceptibility tensor, todd van mechelen, sathwik bharadwaj, zubin jacob, and robert-jan slager, phys. rev. research 4 , 023011 (2022) – published 5 april 2022.

The authors introduce optical N-insulators, a family of topological materials with exotic electromagnetic features such as obstructions to molecular polarizabilities.

• Condensed Matter Physics
• Strongly Correlated Materials

Nonequilibrium fluctuations and nonlinear response of an active bath

Hunter seyforth, mauricio gomez, w. benjamin rogers, jennifer l. ross, and wylie w. ahmed, phys. rev. research 4 , 023043 (2022) – published 18 april 2022.

The authors study the motion of an optically-controlled particle moving through an active bath and observe several regimes on the basis of the Peclet number.

• Biological Physics
• Soft Matter
• Statistical Physics

Momentum microscopy of Pb-intercalated graphene on SiC: Charge neutrality and electronic structure of interfacial Pb

Bharti matta, philipp rosenzweig, olaf bolkenbaas, kathrin küster, and ulrich starke, phys. rev. research 4 , 023250 (2022) – published 27 june 2022.

The authors show the band structure formation of a two-dimensional Pb crystal intercalated below charge-neutral quasi-freestanding graphene on SiC.

• Materials Science

Editors' Suggestion Letter

Harnessing nonadiabatic excitations promoted by a quantum critical point: quantum battery and spin squeezing, obinna abah, gabriele de chiara, mauro paternostro, and ricardo puebla, phys. rev. research 4 , l022017 (2022) – published 22 april 2022.

The authors show that nonadiabatic excitationscan be used to increase exponentially the amount of energy stored in a quantum battery with repeating cycles.

• Quantum Physics

PERSPECTIVES

Perspective, current nuclear data needs for applications, karolina kolos et al., phys. rev. research 4 , 021001 (2022) – published 18 april 2022.

Accurate nuclear data are essential for advances in fields related to energy, security, medicine and space exploration, with similar needs shared by multiple applications. This perspective addresses some of the latest advances in nuclear data for applications and suggests work to ensure both near- and long-term progress

• Computational Physics
• Nuclear Physics

Testing quantum foundations with quantum computers

Simanraj sadana, lorenzo maccone, and urbasi sinha, phys. rev. research 4 , l022001 (2022) – published 1 april 2022.

This article uses quantum computers to perform experimental tests of the foundations of quantum mechanics, more specifically the Sorkin and the Peres tests.

• Quantum Information

Quantum oscillations from Fermi arc surface states in Cd 3 As 2 submicron wires

Yu miyazaki, tomoyuki yokouchi, kiyou shibata, yao chen, hiroki arisawa, teruyasu mizoguchi, eiji saitoh, and yuki shiomi, phys. rev. research 4 , l022002 (2022) – published 5 april 2022.

The authors synthesize submicron wires of Dirac semimetal Cd 3 As 2 by chemical vapor deposition and observe quantum oscillations due to the topological surface states.

Many-body effect renders universal subdiffusion to water on different proteins

Song li, pan tan, jun li, min tang, and liang hong, phys. rev. research 4 , l022003 (2022) – published 5 april 2022.

This article shows a many-body effect that overrides the surface differences among proteins and yields a subdiffusive power-law to water on several proteins.

Quantum effects on plasma screening for thermonuclear reactions in laser-generated plasmas

David elsing, adriana pálffy, and yuanbin wu, phys. rev. research 4 , l022004 (2022) – published 5 april 2022.

The paper shows that quantum effects enhance the plasma screening for thermonuclear reactions in the intermediate screening regime of large plasma densities and low temperatures.

• Astrophysics

Origin of metal-insulator transitions in correlated perovskite metals

M. chandler bennett, guoxiang hu, guangming wang, olle heinonen, paul r. c. kent, jaron t. krogel, and p. ganesh, phys. rev. research 4 , l022005 (2022) – published 5 april 2022.

The authors demonstrate that correlated perovskite oxide metals are self-hole doped and doping them induces a charge-lattice instability.

Relation between dynamic heterogeneities observed in scattering experiments and four-body correlations

Kohsei kanayama, taiki hoshino, and ryoichi yamamoto, phys. rev. research 4 , l022006 (2022) – published 6 april 2022.

This paper proposes a physical connection between the intensities of the dynamic heterogeneities through speckle pattern and four-body correlation functions.

Three-dimensional cancer cell migration directed by dual mechanochemical guidance

Pedram esfahani, herbert levine, mrinmoy mukherjee, and bo sun, phys. rev. research 4 , l022007 (2022) – published 12 april 2022.

The authors show three-dimensional migrating cancer cells additively integrate contact guidance and chemotaxis cues as effective potentials that jointly determine the direction of cell velocity.

Dynamical systems theory of cellular reprogramming

Yuuki matsushita, tetsuhiro s. hatakeyama, and kunihiko kaneko, phys. rev. research 4 , l022008 (2022) – published 12 april 2022.

The authors present a theoretical mechanism for cellular reprogramming and show that global attraction to the initial unstable pluripotent-state is achieved only by manipulating the expression of few genes.

Evidence of nested quasi-one-dimensional Fermi surface and decoupled charge-lattice orders in layered TaTe 2

Yi lin, maximillian huber, sangeeta rajpurohit, yanglin zhu, khalid m. siddiqui, daniel h. eilbott, luca moreschini, ping ai, jonathan d. denlinger, zhiqiang mao, liang z. tan, and alessandra lanzara, phys. rev. research 4 , l022009 (2022) – published 13 april 2022.

The authors report the experimental band structure of layered 1T’-TaTe 2 across a CDW-like phase transition and reveal the existence of a nested quasi-one-dimensional Fermi surface in the two-dimensional material.

Time scaling of entanglement in integrable scale-invariant theories

M. reza mohammadi mozaffar and ali mollabashi, phys. rev. research 4 , l022010 (2022) – published 14 april 2022.

This article shows that most of the entanglement is carried by extremely slow modes in nonrelativistic scale-invariant theories.

• Particles and Fields

Evidence for near-unity radiative quantum efficiency of bright excitons in carbon nanotubes from the Purcell effect

H. machiya, d. yamashita, a. ishii, and y. k. kato, phys. rev. research 4 , l022011 (2022) – published 15 april 2022.

The authors use the Purcell effect in nanobeam microcavities to estimate the radiative quantum efficiency of bright excitons in air-suspended carbon nanotubes.

Modeling the aging of protein condensates

Phys. rev. research 4 , l022012 (2022) – published 18 april 2022.

This paper proposes a theoretical model showing that protein condensates can behave as aging Maxwell fluids and also predict that protein condensates are non-Newtonian fluids under a constant shear rate.

Deterministic Grover search with a restricted oracle

Tanay roy, liang jiang, and david i. schuster, phys. rev. research 4 , l022013 (2022) – published 21 april 2022.

The authors present a protocol to perform Grover’s search without having user control over the quantum search oracle while providing a quadratic speed-up.

Ultrashort laser-driven dynamics of massless Dirac electrons generating valley polarization in graphene

Hamed koochaki kelardeh, ulf saalmann, and jan m. rost, phys. rev. research 4 , l022014 (2022) – published 21 april 2022.

The authors demonstrate how a suitable short laser pulse, linearly polarized along the line connecting the two Dirac points, can achieve valley polarization at a low level of ionization to minimize radiation damage.

XY model for cascade transfer

Tomohiro tanogami and shin-ichi sasa, phys. rev. research 4 , l022015 (2022) – published 22 april 2022.

The authors propose a XY model in which cascade transfer emerges from spatially local interactions and compare the resultant energy spectrum with the its Kolmogorov counterpart in fluid turbulence.

• Fluid Dynamics

Signature of P T -symmetric non-Hermitian superconductivity in angle-resolved photoelectron fluctuation spectroscopy

Viktoriia kornich and björn trauzettel, phys. rev. research 4 , l022018 (2022) – published 22 april 2022.

The authors show that PT-symmetric non-Hermitian superconductor can give negative signal in angle-resolved photoelectron fluctuation spectroscopy.

• Superconductivity

High phase-space density gas of NaCs Feshbach molecules

Aden z. lam, niccolò bigagli, claire warner, weijun yuan, siwei zhang, eberhard tiemann, ian stevenson, and sebastian will, phys. rev. research 4 , l022019 (2022) – published 25 april 2022.

The authors report on the creation of ultracold gases of NaCs Feshbach molecules via magnetoassociation and demonstrate the association of NaCs gases over a wide dynamic range.

• Atomic and Molecular Physics

Crossing a topological phase transition with a quantum computer

Adam smith, bernhard jobst, andrew g. green, and frank pollmann, phys. rev. research 4 , l022020 (2022) – published 25 april 2022.

The authors use quantum computers for crossing a symmetry protected topological phase transition in the thermodynamic limit using finite quantum circuits.

• Topological Insulators

Localized dissipative vortices in chiral nematic liquid crystal cells

M. g. clerc, g. gonzález-cortés, and s. echeverría-alar, phys. rev. research 4 , l022021 (2022) – published 26 april 2022.

The authors describe the emergence, stability, and transitions of chiral dissipative vortices in a cholesteric liquid crystal

Second-harmonic generation in the topological multifold semimetal RhSi

Baozhu lu, sharareh sayyad, miguel ángel sánchez-martínez, kaustuv manna, claudia felser, adolfo g. grushin, and darius h. torchinsky, phys. rev. research 4 , l022022 (2022) – published 26 april 2022.

This work presents an experimental measurement of second-harmonic generation on RhSi in a wide frequency window, ω ∈ [ 0 . 27 , 1 . 5 ] eV.

Measuring postquench entanglement entropy through density correlations

Adrian del maestro, hatem barghathi, and bernd rosenow, phys. rev. research 4 , l022023 (2022) – published 26 april 2022.

The authors show that the steady state entanglement entropy after an interaction quantum quench can be calculated from the short-time dynamics of the structure factor for one-dimensional fermions.

Deciphering in situ electron dynamics of ultrarelativistic plasma via polarization pattern of emitted γ -photons

Zheng gong, karen z. hatsagortsyan, and christoph h. keitel, phys. rev. research 4 , l022024 (2022) – published 29 april 2022.

The authors show that the angular pattern of gamma-photon polarization can be used to infer the in situ acceleration status of plasma electrons.

Widely tunable two-color x-ray free-electron laser pulses

Eduard prat, philipp dijkstal, eugenio ferrari, romain ganter, pavle juranić, alexander malyzhenkov, sven reiche, thomas schietinger, guanglei wang, andre al haddad, sven augustin, christoph bostedt, gregor knopp, jonas knurr, ana sofia morillo-candas, zhibin sun, and kirsten schnorr, phys. rev. research 4 , l022025 (2022) – published 2 may 2022.

This article reports on the generation of widely tunable femtosecond two-color x-ray free-electron laser pulses and studies the photon energy ratio between the pulses and its time delay.

Neural network evolution strategy for solving quantum sign structures

Ao chen, kenny choo, nikita astrakhantsev, and titus neupert, phys. rev. research 4 , l022026 (2022) – published 2 may 2022.

The authors use artificial neural networks with discrete output and evolutionary optimization to obtain sign structures in quantum spin systems.

• Complex Systems

Strained bilayer graphene, emergent energy scales, and moiré gravity

Alireza parhizkar and victor galitski, phys. rev. research 4 , l022027 (2022) – published 2 may 2022.

The authors explore the emergence of energy scales due to moiré patterns such as in graphene in other areas of physics, such as gravity or cosmology.

Trapping and acceleration of spin-polarized positrons from γ photon splitting in wakefields

Wei-yuan liu, kun xue, feng wan, min chen, jian-xing li, feng liu, su-ming weng, zheng-ming sheng, and jie zhang, phys. rev. research 4 , l022028 (2022) – published 3 may 2022.

The authors propose a scheme to generate polarized positrons and inject them in plasma wakefields with further acceleration to high energies.

Microbial narrow-escape is facilitated by wall interactions

Mathieu souzy, antoine allard, jean-françois louf, matteo contino, idan tuval, and marco polin, phys. rev. research 4 , l022029 (2022) – published 5 may 2022.

The authors study direct and wall-mediated escape schemes for swimming microorganisms under spatial confinement.

Coexisting Kondo hybridization and itinerant f -electron ferromagnetism in UGe 2

Ioannis giannakis, divyanshi sar, joel friedman, chang-jong kang, marc janoschek, pinaki das, eric d. bauer, gabriel kotliar, and pegor aynajian, phys. rev. research 4 , l022030 (2022) – published 6 may 2022.

The authors use scanning tunneling spectroscopy to reveal how Kondo hybridization and itinerant ferromagnetism in UGe 2 drive spin-polarized f -electronic states near the Fermi energy.

Shell-model study of octupole collectivity near Pb 208

P. van isacker and m. rejmund, phys. rev. research 4 , l022031 (2022) – published 9 may 2022.

The authors study the coherent contribution of individual nucleons to the collective octupole, pear-shaped vibration of the atomic nucleus.

Learning algorithm reflecting universal scaling behavior near phase transitions

N. maskara, m. buchhold, m. endres, and e. van nieuwenburg, phys. rev. research 4 , l022032 (2022) – published 9 may 2022.

This work introduces a supervised learning algorithm for studying critical phenomena directly from measurement data.

Statistical dependencies beyond linear correlations in light scattered by disordered media

Ilya starshynov, alex turpin, philip binner, and daniele faccio, phys. rev. research 4 , l022033 (2022) – published 11 may 2022.

The authors use an artificial neural network to image through a bilayer dynamic diffuser and study imaging information transmission through this scattering system.

Quantum coherent states of interacting Bose-Fermi mixtures in one dimension

J. clayton peacock, aleksandar ljepoja, and c. j. bolech, phys. rev. research 4 , l022034 (2022) – published 11 may 2022.

This work presents an implementation of a continuous matrix product state ansatz for one-dimensional Bose-Fermi mixtures that yields a variety of coherent ground state phases when the inter-species interaction is attractive.

Unifying the Anderson transitions in Hermitian and non-Hermitian systems

Xunlong luo, zhenyu xiao, kohei kawabata, tomi ohtsuki, and ryuichi shindou, phys. rev. research 4 , l022035 (2022) – published 11 may 2022.

The authors propose a correspondence between the Anderson transition in non-Hermitian symmetry classes and Hermitian symmetry classes, using a “Hermitization procedure” and numerical calculations.

Spectral detuning of relativistic surface harmonics

Elkana porat, itamar cohen, assaf levanon, and ishay pomerantz, phys. rev. research 4 , l022036 (2022) – published 16 may 2022.

The authors show that when chirp is introduced in the generation of relativistic surface harmonics, different instantaneous frequencies drive the harmonic beam to different cone angles.

Physical learning beyond the quasistatic limit

Menachem stern, sam dillavou, marc z. miskin, douglas j. durian, and andrea j. liu, phys. rev. research 4 , l022037 (2022) – published 16 may 2022.

The authors propose that physical learning machines can learn effectively beyond equilibrium, based on experimental evidence and theoretical arguments.

• Metamaterials

Coherent phase slips in coupled matter-wave circuits

A. pérez-obiol, j. polo, and l. amico, phys. rev. research 4 , l022038 (2022) – published 17 may 2022.

The authors study the quantum many-body dynamics of two side-by-side ring-shaped neutral bosonic systems and show the onset of coherent phase slips.

Space-time duality between quantum chaos and non-Hermitian boundary effect

Tian-gang zhou, yi-neng zhou, pengfei zhang, and hui zhai, phys. rev. research 4 , l022039 (2022) – published 20 may 2022.

This article shows that the quantum chaos diagnosed by the out-of-time ordered correlator and the non-Hermitian skin effect can be unified through the space-time duality of quantum circuit.

Strong effects of uniaxial pressure and short-range correlations in Cr 2 Ge 2 Te 6

S. spachmann, a. elghandour, s. selter, b. büchner, s. aswartham, and r. klingeler, phys. rev. research 4 , l022040 (2022) – published 20 may 2022.

The authors study the uniaxial pressure dependencies of T C in Cr 2 Ge 2 Te 6 determined usingdilatometry and thermodynamic relations.

Phase dynamics of noise-induced coherent oscillations in excitable systems

Jinjie zhu, yuzuru kato, and hiroya nakao, phys. rev. research 4 , l022041 (2022) – published 24 may 2022.

The authors propose a phase reduction framework for noise-induced oscillations in coherent excitable systems.

Leaky exciton condensates in transition metal dichalcogenide moiré bilayers

Benjamin remez and nigel r. cooper, phys. rev. research 4 , l022042 (2022) – published 24 may 2022.

The authors show that strong interactions generate optical emission from dark exciton condensates in twisted Van der Waals bilayers.

Edge dislocations in multicomponent solid solution alloys: Beyond traditional elastic depinning

A. esfandiarpour, s. papanikolaou, and m. alava, phys. rev. research 4 , l022043 (2022) – published 24 may 2022.

The authors using Molecular dynamic simulations to represent a strategy for increasing strength in multi-component single-phase fcc alloys.

Flagellar elasticity and the multiple swimming modes of interfacial bacteria

S. bianchi, f. saglimbeni, g. frangipane, and r. di leonardo, phys. rev. research 4 , l022044 (2022) – published 24 may 2022.

The authors show that E. coli bacteria exhibit four main swimming modes dictated by the elastic and geometric properties of the flagellar bundle.

Cooling and state preparation in an optical lattice via Markovian feedback control

Ling-na wu and andré eckardt, phys. rev. research 4 , l022045 (2022) – published 24 may 2022.

This paper presents a scheme based on Markovian feedback control that allows for the preparation of single targeted eigenstates of a system of bosonic atoms in a one-dimensional optical lattice with high fidelity.

Diversity of phase transitions and phase separations in active fluids

Thibault bertrand and chiu fan lee, phys. rev. research 4 , l022046 (2022) – published 25 may 2022.

The authors discuss phase transitions and phase separations observed in active fluids and reveal the existence of a comoving phase coexistence and of a multicritical point.

Directed percolation in temporal networks

Arash badie-modiri, abbas k. rizi, márton karsai, and mikko kivelä, phys. rev. research 4 , l022047 (2022) – published 25 may 2022.

The authors show that connectivity in temporal networks belong to the directed percolation universality class.

Hubble selection of the weak scale from QCD quantum critical point

Sunghoon jung and taehun kim, phys. rev. research 4 , l022048 (2022) – published 31 may 2022.

This work shows that the electroweak scale can be generically small by quantum cosmological effects, which drive the variable weak scale toward quantum critical points of QCD at inflation.

Quantum interference tuning of spin-orbit coupling in twisted van der Waals trilayers

Csaba g. péterfalvi, alessandro david, péter rakyta, guido burkard, and andor kormányos, phys. rev. research 4 , l022049 (2022) – published 31 may 2022.

The authors show that the proximity induced Rashba spin-orbit coupling can be affected by quantum interference effects in van der Waals stacks of twisted layers of atomically thin materials.

Modifying natural droplet systems by charge injection

R. giles harrison, graeme j. marlton, maarten h. p. ambaum, and keri a. nicoll, phys. rev. research 4 , l022050 (2022) – published 31 may 2022.

The authors study natural fog to show that the droplet properties can be modified by introducing charge.

• Interdisciplinary Physics

Flat-band Majorana bound states in topological Josephson junctions

Daisuke oshima, satoshi ikegaya, andreas p. schnyder, and yukio tanaka, phys. rev. research 4 , l022051 (2022) – published 31 may 2022.

The authors show that a three-dimensional Josephson junction consisting of a persistent spin-helix material and conventional superconductors exhibits flat-band Majorana bound states originated from the nontrivial topology.

Alternative interpretation of relativistic time-reversal and the time arrow

T. zalialiutdinov, d. solovyev, d. chubukov, s. chekhovskoi, and l. labzowsky, phys. rev. research 4 , l022052 (2022) – published 1 june 2022.

This article provides an alternative interpretation of the time reversal in relativistic theory in terms of a time arrow quantum number for every particle.

• Gravitation

Divergent thermal expansion and Grüneisen ratio in a quadrupolar Kondo metal

A. wörl, m. garst, y. yamane, s. bachus, t. onimaru, and p. gegenwart, phys. rev. research 4 , l022053 (2022) – published 6 june 2022.

The authors measure the quadrupolar thermal expansion α u in diluted PrIr 2 Zn 20 reveal a singular temperature dependence, characteristic for the single-impurity quadrupolar Kondo effect.

Constraints on the symmetry energy from PREX-II in the multimessenger era

Tong-gang yue, lie-wen chen, zhen zhang, and ying zhou, phys. rev. research 4 , l022054 (2022) – published 8 june 2022.

The authors show that the density slope of the symmetry energy is constrained tightly by nuclear data and astrophysical observations.

Strain hardening by sediment transport

Fernando d. cúñez, erick m. franklin, morgane houssais, paulo arratia, and douglas j. jerolmack, phys. rev. research 4 , l022055 (2022) – published 8 june 2022.

The authors study the strengthening of a river bed in a laboratory study and identify compaction and particle alignment as the main mechanisms that lead to this behavior.

Radiation pressure acceleration of high-quality ion beams using ultrashort laser pulses

H.-g. jason chou, a. grassi, s. h. glenzer, and f. fiuza, phys. rev. research 4 , l022056 (2022) – published 10 june 2022.

The authors show how to control the stability of a thin solid target to mitigate electron heating and produce ion beams with high spectral quality from laser radiation pressure acceleration.

Complexity of modulation instability

Auro m. perego, florent bessin, and arnaud mussot, phys. rev. research 4 , l022057 (2022) – published 13 june 2022.

The authors study the computational complexity of modulation instability of light waves propagating through an optical fiber, and show that this statistical tool provides insights into the formation of coherent structures from noise, and into the nonlinear dynamics of the system.

Enhancing fiber atom interferometer by in-fiber laser cooling

Yu wang, shijie chai, thomas billotte, zilong chen, mingjie xin, wui seng leong, foued amrani, benoit debord, fetah benabid, and shau-yu lan, phys. rev. research 4 , l022058 (2022) – published 13 june 2022.

The authors demonstrate laser cooling of atoms inside a hollow-core fiber and a 20-ms-long inertia-sensitive atom interferometer in the fiber for quantum sensing applications.

Resonant enhancement of three-body loss between strongly interacting photons

Marcin kalinowski, yidan wang, przemyslaw bienias, michael j. gullans, d. p. ornelas-huerta, alexander n. craddock, steven l. rolston, j. v. porto, hans peter büchler, and alexey v. gorshkov, phys. rev. research 4 , l022059 (2022) – published 17 june 2022.

The authors show that the three-body dissipative force between Rydberg polaritons can be enhanced by tuning classical control parameters to a resonance condition

Observation of emergent Z 2 gauge invariance in a superconducting circuit

Zhan wang, zi-yong ge, zhongcheng xiang, xiaohui song, rui-zhen huang, pengtao song, xue-yi guo, luhong su, kai xu, dongning zheng, and heng fan, phys. rev. research 4 , l022060 (2022) – published 17 june 2022.

The authors use a ten-qubit superconducting processor to simulate the dynamics of a quantum many-body system with emergent gauge invariance.

Extraction of interaction parameters for α − RuCl 3 from neutron data using machine learning

Anjana m. samarakoon, pontus laurell, christian balz, arnab banerjee, paula lampen-kelley, david mandrus, stephen e. nagler, satoshi okamoto, and d. alan tennant, phys. rev. research 4 , l022061 (2022) – published 21 june 2022.

This article introduces a machine learning assisted workflow in solving inverse scattering problems and presents an implementation in inelastic neutron scattering data on α -RuCl 3 .

Ultrafast element- and depth-resolved magnetization dynamics probed by transverse magneto-optical Kerr effect spectroscopy in the soft x-ray range

Martin hennecke, daniel schick, themistoklis sidiropoulos, felix willems, anke heilmann, martin bock, lutz ehrentraut, dieter engel, piet hessing, bastian pfau, martin schmidbauer, andreas furchner, matthias schnuerer, clemens von korff schmising, and stefan eisebitt, phys. rev. research 4 , l022062 (2022) – published 21 june 2022.

The authors study element- and depth-resolved ultrafast magnetization dynamics in a GdFe heterostructure by linking laser-induced changes in broadband transverse magneto-optical Kerr effect spectra to the formation of transient magnetization profiles.

X-ray diffractive imaging of highly ionized helium nanodroplets

Alexandra j. feinberg et al., phys. rev. research 4 , l022063 (2022) – published 21 june 2022.

The authors use droplets of helium to image the arrangement of multiple charges on a sphere, known as a Thompson problem.

• Superfluidity

Knot topology of exceptional point and non-Hermitian no-go theorem

Haiping hu, shikang sun, and shu chen, phys. rev. research 4 , l022064 (2022) – published 27 june 2022.

The authors formulate a homotopy classification and knot theory of exceptional points and present a non-Hermitian no-go theorem governing the possible configurations of exceptional points and their splitting rules on a two-dimensional lattice.

Non-Gaussian stochastic dynamical model for the El Niño southern oscillation

L. t. giorgini, w. moon, n. chen, and j. s. wettlaufer, phys. rev. research 4 , l022065 (2022) – published 27 june 2022.

The authors uncover a mechanism that governs the El Niño-Southern Oscillation (ENSO).

• Energy Research

Dynamics of measured many-body quantum chaotic systems

Alexander altland, michael buchhold, sebastian diehl, and tobias micklitz, phys. rev. research 4 , l022066 (2022) – published 27 june 2022.

The authors study the dynamics of continuously measured many body chaotic quantum systems, in particular of state purification.

Identifying axion insulator by quantized magnetoelectric effect in antiferromagnetic MnBi 2 Te 4 tunnel junction

Yu-hang li and ran cheng, phys. rev. research 4 , l022067 (2022) – published 28 june 2022.

The authors propose a MnBi 2 Te 4 tunnel junction to unambiguously identify an axion insulator through the quantized topological magnetoelectric effect.

Lindbladian dissipation of strongly-correlated quantum matter

Lucas sá, pedro ribeiro, and tomaž prosen, phys. rev. research 4 , l022068 (2022) – published 30 june 2022.

The authors compute the dissipation rate of a strongly-interacting open quantum system described the Sachdev-Ye-Kitaev Lindbladian.

Magnetic structure of oxygen-deficient perovskite nickelates with ordered vacancies

Yongjin shin and james m. rondinelli, phys. rev. research 4 , l022069 (2022) – published 30 june 2022.

The authors identify the magnetic structure of oxygen-deficient nickelates with density functional theory calculations and explain how arrangements of structural oxygen vacancies stabilize an antiferromagnetic ground state.

Energy transport in Sachdev-Ye-Kitaev networks coupled to thermal baths

Cristian zanoci and brian swingle, phys. rev. research 4 , 023001 (2022) – published 1 april 2022, self-ordering of individual photons in waveguide qed and rydberg-atom arrays, ole a. iversen and thomas pohl, phys. rev. research 4 , 023002 (2022) – published 1 april 2022, optimal transfer functions for bandwidth-limited imaging, sjoerd stallinga, niels radmacher, antoine delon, and jörg enderlein, phys. rev. research 4 , 023003 (2022) – published 1 april 2022, quantization of out-of-time-ordered correlators in non-hermitian chaotic systems, wen-lei zhao, phys. rev. research 4 , 023004 (2022) – published 1 april 2022, machine learning of the x y model on a spherical fibonacci lattice, chen-hui song, qu-cheng gao, xu-yang hou, xin wang, zheng zhou, yan he, hao guo, and chih-chun chien, phys. rev. research 4 , 023005 (2022) – published 1 april 2022, quantum algorithm for gravitational-wave matched filtering, sijia gao, fergus hayes, sarah croke, chris messenger, and john veitch, phys. rev. research 4 , 023006 (2022) – published 4 april 2022, optical excitation of electromagnons in hexaferrite, hiroki ueda, hoyoung jang, sae hwan chun, hyeong-do kim, minseok kim, sang-youn park, simone finizio, nazaret ortiz hernandez, vladimir ovuka, matteo savoini, tsuyoshi kimura, yoshikazu tanaka, andrin doll, and urs staub, phys. rev. research 4 , 023007 (2022) – published 4 april 2022, weak ferromagnetism linked to the high-temperature spiral phase of ybacufeo 5, j. lyu, m. morin, t. shang, m. t. fernández-díaz, and m. medarde, phys. rev. research 4 , 023008 (2022) – published 4 april 2022, topological properties in non-hermitian tetratomic su-schrieffer-heeger lattices, jia-rui li, lian-lian zhang, wei-bin cui, and wei-jiang gong, phys. rev. research 4 , 023009 (2022) – published 4 april 2022, stabilizing two-qubit entanglement by mimicking a squeezed environment, l. c. g. govia, a. lingenfelter, and a. a. clerk, phys. rev. research 4 , 023010 (2022) – published 5 april 2022, enhancing stability and magnetism of thmn 12 -type cerium-iron intermetallics by site substitution, churna bhandari and durga paudyal, phys. rev. research 4 , 023012 (2022) – published 5 april 2022, generalized interference of fermions and bosons, dylan spivak, murphy yuezhen niu, barry c. sanders, and hubert de guise, phys. rev. research 4 , 023013 (2022) – published 6 april 2022, universal scattering with general dispersion relations, yidan wang, michael j. gullans, xuesen na, seth whitsitt, and alexey v. gorshkov, phys. rev. research 4 , 023014 (2022) – published 6 april 2022, axion haloscope array with pt symmetry, yifan chen, minyuan jiang, yiqiu ma, jing shu, and yuting yang, phys. rev. research 4 , 023015 (2022) – published 6 april 2022, organic charged polaritons in the ultrastrong coupling regime, mao wang, suman mallick, anton frisk kockum, and karl börjesson, phys. rev. research 4 , 023016 (2022) – published 6 april 2022, quantum analytic descent, bálint koczor and simon c. benjamin, phys. rev. research 4 , 023017 (2022) – published 6 april 2022, floquet time crystals in driven spin systems with all-to-all p -body interactions, manuel h. muñoz-arias, karthik chinni, and pablo m. poggi, phys. rev. research 4 , 023018 (2022) – published 7 april 2022, fault-tolerant resource estimate for quantum chemical simulations: case study on li-ion battery electrolyte molecules, isaac h. kim, ye-hua liu, sam pallister, william pol, sam roberts, and eunseok lee, phys. rev. research 4 , 023019 (2022) – published 7 april 2022.

• Chemical Physics

Qubit decoherence and symmetry restoration through real-time instantons

Foster thompson and alex kamenev, phys. rev. research 4 , 023020 (2022) – published 8 april 2022, surface photogalvanic effect in weyl semimetals, j. f. steiner, a. v. andreev, and m. breitkreiz, phys. rev. research 4 , 023021 (2022) – published 8 april 2022.

• Optoelectronics

Multi-photon multi-quantum transitions in the spin- 3 2 silicon-vacancy centers of SiC

Harpreet singh, mario alex hollberg, andrey n. anisimov, pavel g. baranov, and dieter suter, phys. rev. research 4 , 023022 (2022) – published 8 april 2022, equivalence between belief propagation instability and transition to replica symmetry breaking in perceptron learning systems, yang zhao, junbin qiu, mingshan xie, and haiping huang, phys. rev. research 4 , 023023 (2022) – published 8 april 2022, increasing the decoherence rate of rydberg polaritons due to accumulating dark rydberg atoms, ko-tang chen, bongjune kim, chia-chen su, shih-si hsiao, shou-jou huang, wen-te liao, and ite a. yu, phys. rev. research 4 , 023024 (2022) – published 8 april 2022, criticality and rigidity of dissipative discrete time crystals in solids, koki chinzei and tatsuhiko n. ikeda, phys. rev. research 4 , 023025 (2022) – published 8 april 2022, emergence of solitons from many-body photon bound states in quantum nonlinear media, g. calajó and d. e. chang, phys. rev. research 4 , 023026 (2022) – published 8 april 2022, information flow and error scaling for fully quantum control, stefano gherardini, matthias m. müller, simone montangero, tommaso calarco, and filippo caruso, phys. rev. research 4 , 023027 (2022) – published 11 april 2022, predicting extreme events from data using deep machine learning: when and where, junjie jiang, zi-gang huang, celso grebogi, and ying-cheng lai, phys. rev. research 4 , 023028 (2022) – published 11 april 2022, learning the crystal structure genome for property classification, yiqun wang, xiao-jie zhang, fei xia, elsa a. olivetti, stephen d. wilson, ram seshadri, and james m. rondinelli, phys. rev. research 4 , 023029 (2022) – published 11 april 2022, intrinsic ferromagnetic and antiferromagnetic axion insulators in van der waals materials mn x 2 b 2 t 6 family, yan gao, kai liu, and zhong-yi lu, phys. rev. research 4 , 023030 (2022) – published 11 april 2022, black hole hookean law and thermodynamic fragmentation: insights from the maximum force conjecture and ruppeiner geometry, sofia di gennaro, michael r. r. good, and yen chin ong, phys. rev. research 4 , 023031 (2022) – published 11 april 2022, evolution of a confluent gut epithelium under on-chip cyclic stretching, lauriane gérémie, efe ilker, moencopi bernheim-dennery, charles cavaniol, jean-louis viovy, danijela matic vignjevic, jean-françois joanny, and stéphanie descroix, phys. rev. research 4 , 023032 (2022) – published 11 april 2022, field theory of structured liquid dielectrics, ralf blossey and rudolf podgornik, phys. rev. research 4 , 023033 (2022) – published 11 april 2022, achieving fault tolerance against amplitude-damping noise, akshaya jayashankar, my duy hoang long, hui khoon ng, and prabha mandayam, phys. rev. research 4 , 023034 (2022) – published 11 april 2022, hierarchies of localizable entanglement due to spatial distribution of local noise, ratul banerjee, amit kumar pal, and aditi sen(de), phys. rev. research 4 , 023035 (2022) – published 12 april 2022, unraveling the topology of dissipative quantum systems, clemens gneiting, akshay koottandavida, a. v. rozhkov, and franco nori, phys. rev. research 4 , 023036 (2022) – published 12 april 2022, modeling of human group coordination, hannes hornischer, paul j. pritz, johannes pritz, marco g. mazza, and margarete boos, phys. rev. research 4 , 023037 (2022) – published 12 april 2022, lattice model constructions for gapless domain walls between topological phases, chenfeng bao, shuo yang, chenjie wang, and zheng-cheng gu, phys. rev. research 4 , 023038 (2022) – published 14 april 2022, spatiotemporal diffusion as early warning signal for critical transitions in spatial tumor-immune system with stochasticity, zhiqin ma, yuhui luo, chunhua zeng, and bo zheng, phys. rev. research 4 , 023039 (2022) – published 14 april 2022, arbitrary controlled-phase gate on fluxonium qubits using differential ac stark shifts, haonan xiong, quentin ficheux, aaron somoroff, long b. nguyen, ebru dogan, dario rosenstock, chen wang, konstantin n. nesterov, maxim g. vavilov, and vladimir e. manucharyan, phys. rev. research 4 , 023040 (2022) – published 15 april 2022, estimation of correlations and nonseparability in quantum channels via unitarity benchmarking, matthew girling, cristina cîrstoiu, and david jennings, phys. rev. research 4 , 023041 (2022) – published 15 april 2022, arbitrary coherent distributions in a programmable quantum walk, rong zhang, ran yang, jian guo, chang-wei sun, yi-chen liu, heng zhou, ping xu, zhenda xie, yan-xiao gong, and shi-ning zhu, phys. rev. research 4 , 023042 (2022) – published 18 april 2022, green's functions of and emission into discrete anisotropic and hyperbolic baths, lewis ruks and thomas busch, phys. rev. research 4 , 023044 (2022) – published 19 april 2022, using the autler-townes and ac stark effects to optically tune the frequency of indistinguishable single photons from an on-demand source, chris gustin, łukasz dusanowski, sven höfling, and stephen hughes, phys. rev. research 4 , 023045 (2022) – published 19 april 2022.

• Semiconductor Physics

Semiconducting Ba S 3 phase featuring v-shape S 3 unit at high pressure

Sheng wang, siyu liu, pengyue gao, jian lv, yanchao wang, and guochun yang, phys. rev. research 4 , 023046 (2022) – published 19 april 2022, photonic dirac nodal-line semimetals realized by a hypercrystal, shengyu hu, zhiwei guo, haitao jiang, and hong chen, phys. rev. research 4 , 023047 (2022) – published 19 april 2022, regimes of cavity qed under incoherent excitation: from weak to deep strong coupling, alberto mercurio, vincenzo macrì, chris gustin, stephen hughes, salvatore savasta, and franco nori, phys. rev. research 4 , 023048 (2022) – published 20 april 2022, higher-order topological biphoton corner states in two-dimensional photonic lattices, chu li, meng li, linyu yan, sheng ye, xiaoyong hu, qihuang gong, and yan li, phys. rev. research 4 , 023049 (2022) – published 20 april 2022, fulfillment of sum rules and ward identities in the multiloop functional renormalization group solution of the anderson impurity model, patrick chalupa-gantner, fabian b. kugler, cornelia hille, jan von delft, sabine andergassen, and alessandro toschi, phys. rev. research 4 , 023050 (2022) – published 20 april 2022, estimating entropy production with odd-parity state variables via machine learning, dong-kyum kim, sangyun lee, and hawoong jeong, phys. rev. research 4 , 023051 (2022) – published 20 april 2022, time-resolved physical spectrum in cavity quantum electrodynamics, makoto yamaguchi, alexey lyasota, tatsuro yuge, and yasutomo ota, phys. rev. research 4 , 023052 (2022) – published 20 april 2022, impact of one-way streets on the asymmetry of the shortest commuting routes, hygor p. m. melo, diogo p. mota, josé s. andrade, jr., and nuno a. m. araújo, phys. rev. research 4 , 023053 (2022) – published 20 april 2022, engineering strong beamsplitter interaction between bosonic modes via quantum optimal control theory, daniel basilewitsch, yaxing zhang, s. m. girvin, and christiane p. koch, phys. rev. research 4 , 023054 (2022) – published 20 april 2022, first-principles derivation and properties of density-functional average-atom models, t. j. callow, s. b. hansen, e. kraisler, and a. cangi, phys. rev. research 4 , 023055 (2022) – published 20 april 2022, magnetic field tuning of valley population in the weyl phase of nd 2 ir 2 o 7, itzik kapon, carl willem rischau, bastien michon, kai wang, bing xu, qiu yang, satoru nakatsuji, and dirk van der marel, phys. rev. research 4 , 023056 (2022) – published 20 april 2022, differences in the critical dynamics underlying the human and fruit-fly connectome, géza ódor, gustavo deco, and jeffrey kelling, phys. rev. research 4 , 023057 (2022) – published 20 april 2022, implementation of quantum stochastic walks for function approximation, two-dimensional data classification, and sequence classification, lu-ji wang, jia-yi lin, and shengjun wu, phys. rev. research 4 , 023058 (2022) – published 20 april 2022, geometric mean of bipartite concurrences as a genuine multipartite entanglement measure, yinfei li and jiangwei shang, phys. rev. research 4 , 023059 (2022) – published 20 april 2022, effects of strain in multiorbital superconductors: the case of sr 2 ruo 4, sophie beck, alexander hampel, manuel zingl, carsten timm, and aline ramires, phys. rev. research 4 , 023060 (2022) – published 21 april 2022, first steps towards achieving both ultranonlocality and a reliable description of electronic binding in a meta-generalized gradient approximation, timo lebeda, thilo aschebrock, and stephan kümmel, phys. rev. research 4 , 023061 (2022) – published 21 april 2022, continuous black-box optimization with an ising machine and random subspace coding, syun izawa, koki kitai, shu tanaka, ryo tamura, and koji tsuda, phys. rev. research 4 , 023062 (2022) – published 21 april 2022, line-graph-lattice crystal structures of stoichiometric materials, christie s. chiu, annette n. carroll, nicolas regnault, and andrew a. houck, phys. rev. research 4 , 023063 (2022) – published 22 april 2022, structural instabilities of infinite-layer nickelates from first-principles simulations, álvaro adrián carrasco álvarez, sébastien petit, lucia iglesias, wilfrid prellier, manuel bibes, and julien varignon, phys. rev. research 4 , 023064 (2022) – published 22 april 2022, positron driven high-field terahertz waves via dielectric wakefield interaction, n. majernik, g. andonian, o. b. williams, b. d. o'shea, p. d. hoang, c. clarke, m. j. hogan, v. yakimenko, and j. b. rosenzweig, phys. rev. research 4 , 023065 (2022) – published 25 april 2022, optimal tests for continuous-variable quantum teleportation and photodetectors, kunal sharma, barry c. sanders, and mark m. wilde, phys. rev. research 4 , 023066 (2022) – published 25 april 2022, quantum coulomb glass on the bethe lattice, izabella lovas, annamária kiss, cătălin paşcu moca, and gergely zaránd, phys. rev. research 4 , 023067 (2022) – published 25 april 2022, spin-conserving boltzmann theory for carriers and excitons in organic semiconductors, charlotte bäcker, linus thummel, and carsten timm, phys. rev. research 4 , 023068 (2022) – published 25 april 2022, quantum-limited thermometry of a fermi gas with a charged spin particle, lorenzo oghittu and antonio negretti, phys. rev. research 4 , 023069 (2022) – published 25 april 2022, einstein's quantum elevator: hermitization of non-hermitian hamiltonians via a generalized vielbein formalism, chia-yi ju, adam miranowicz, fabrizio minganti, chuan-tsung chan, guang-yin chen, and franco nori, phys. rev. research 4 , 023070 (2022) – published 25 april 2022, nonlinear quantum gates for a bose-einstein condensate, shu xu, jörg schmiedmayer, and barry c. sanders, phys. rev. research 4 , 023071 (2022) – published 26 april 2022, unitary block optimization for variational quantum algorithms, lucas slattery, benjamin villalonga, and bryan k. clark, phys. rev. research 4 , 023072 (2022) – published 26 april 2022, purcell-enhanced dipolar interactions in nanostructures, a. skljarow, h. kübler, c. s. adams, t. pfau, r. löw, and h. alaeian, phys. rev. research 4 , 023073 (2022) – published 26 april 2022, superglass formation in an atomic bec with competing long-range interactions, stefan ostermann, valentin walther, and susanne f. yelin, phys. rev. research 4 , 023074 (2022) – published 27 april 2022, quantifying the presence of a neutron in the paths of an interferometer, hartmut lemmel, niels geerits, armin danner, holger f. hofmann, and stephan sponar, phys. rev. research 4 , 023075 (2022) – published 27 april 2022, time-limited self-sustaining rhythms and state transitions in brain networks, siyu huo, yong zou, marcus kaiser, and zonghua liu, phys. rev. research 4 , 023076 (2022) – published 27 april 2022, chiral spin-phonon bound states and spin-spin interactions with phononic lattices, xing-liang dong, cai-peng shen, shao-yan gao, hong-rong li, hong gao, fu-li li, and peng-bo li, phys. rev. research 4 , 023077 (2022) – published 27 april 2022, intermediate spin state and the b 1 − b 2 transition in ferropericlase, tianqi wan, yang sun, and renata m. wentzcovitch, phys. rev. research 4 , 023078 (2022) – published 29 april 2022, optimizing frequency allocation for fixed-frequency superconducting quantum processors, alexis morvan, larry chen, jeffrey m. larson, david i. santiago, and irfan siddiqi, phys. rev. research 4 , 023079 (2022) – published 28 april 2022, dynamics of spontaneous wrapping of microparticles by floppy lipid membranes, hendrik t. spanke, jaime agudo-canalejo, daniel tran, robert w. style, and eric r. dufresne, phys. rev. research 4 , 023080 (2022) – published 28 april 2022, probing the dissipation process via a fano resonance and collective effects in an x-ray cavity, tian-jun li, xin-chao huang, zi-ru ma, bo li, and lin-fan zhu, phys. rev. research 4 , 023081 (2022) – published 28 april 2022, chiral quantum optics in broken-symmetry and topological photonic crystal waveguides, nils valentin hauff, hanna le jeannic, peter lodahl, stephen hughes, and nir rotenberg, phys. rev. research 4 , 023082 (2022) – published 29 april 2022, friedel formula and krein's theorem in complex potential scattering theory, peng guo and vladimir gasparian, phys. rev. research 4 , 023083 (2022) – published 2 may 2022, finite orbital-angular-momentum carried by the final electron and photon in plane-wave electron-nucleus bremsstrahlung, weiqing wang, shiyu liu, shaohu lei, xuesong geng, baifei shen, zhigang bu, and liangliang ji, phys. rev. research 4 , 023084 (2022) – published 2 may 2022, spatiotemporal dynamics of ultrarelativistic beam-plasma instabilities, p. san miguel claveria et al., phys. rev. research 4 , 023085 (2022) – published 2 may 2022, geometrically robust linear optics from non-abelian geometric phases, julien pinske and stefan scheel, phys. rev. research 4 , 023086 (2022) – published 2 may 2022, constructing nano-object quantum superpositions with a stern-gerlach interferometer, ryan j. marshman, anupam mazumdar, ron folman, and sougato bose, phys. rev. research 4 , 023087 (2022) – published 2 may 2022, spectral analysis of current fluctuations in periodically driven stochastic systems, bertrand lacroix-a-chez-toine and oren raz, phys. rev. research 4 , 023088 (2022) – published 2 may 2022, non-hermitian waves in a continuous periodic model and application to photonic crystals, kazuki yokomizo, taiki yoda, and shuichi murakami, phys. rev. research 4 , 023089 (2022) – published 2 may 2022, circuit-level protocol and analysis for twist-based lattice surgery, christopher chamberland and earl t. campbell, phys. rev. research 4 , 023090 (2022) – published 2 may 2022, optimizing randomized potentials for inhibiting thermalization in one-dimensional systems, yintai zhang and yufeng liang, phys. rev. research 4 , 023091 (2022) – published 2 may 2022, optimizing the mitigation of epidemic spreading through targeted adoption of contact tracing apps, aleix bassolas, andrea santoro, sandro sousa, silvia rognone, and vincenzo nicosia, phys. rev. research 4 , 023092 (2022) – published 2 may 2022, magnetic correlations in infinite-layer nickelates: an experimental and theoretical multimethod study, r. a. ortiz, p. puphal, m. klett, f. hotz, r. k. kremer, h. trepka, m. hemmida, h.-a. krug von nidda, m. isobe, r. khasanov, h. luetkens, p. hansmann, b. keimer, t. schäfer, and m. hepting, phys. rev. research 4 , 023093 (2022) – published 2 may 2022, gyrotactic mechanism induced by fluid inertial torque for settling elongated microswimmers, jingran qiu, zhiwen cui, eric climent, and lihao zhao, phys. rev. research 4 , 023094 (2022) – published 2 may 2022, quantum information scrambling in quantum many-body scarred systems, dong yuan, shun-yao zhang, yu wang, l.-m. duan, and dong-ling deng, phys. rev. research 4 , 023095 (2022) – published 3 may 2022, fermi surface segmentation in the helical state of a rashba superconductor, alireza akbari and peter thalmeier, phys. rev. research 4 , 023096 (2022) – published 3 may 2022, quantum dynamics simulations beyond the coherence time on noisy intermediate-scale quantum hardware by variational trotter compression, noah f. berthusen, thaís v. trevisan, thomas iadecola, and peter p. orth, phys. rev. research 4 , 023097 (2022) – published 4 may 2022, sound-ring radiation of expanding vortex clusters, august geelmuyden, sebastian erne, sam patrick, carlo f. barenghi, and silke weinfurtner, phys. rev. research 4 , 023099 (2022) – published 6 may 2022, giant nonlinear anomalous hall effect induced by spin-dependent band structure evolution, xiangyu cao, jie-xiang yu, pengliang leng, changjiang yi, xiaoyang chen, yunkun yang, shanshan liu, lingyao kong, zihan li, xiang dong, youguo shi, manuel bibes, rui peng, jiadong zang, and faxian xiu, phys. rev. research 4 , 023100 (2022) – published 6 may 2022, lasing and counter-lasing phase transitions in a cavity-qed system, kevin c. stitely, andrus giraldo, bernd krauskopf, and scott parkins, phys. rev. research 4 , 023101 (2022) – published 6 may 2022, algebraic structure of path-independent quantum control, wen-long ma, shu-shen li, and liang jiang, phys. rev. research 4 , 023102 (2022) – published 9 may 2022, strong spin-exchange recombination of three weakly interacting li 7 atoms, j.-l. li, t. secker, p. m. a. mestrom, and s. j. j. m. f. kokkelmans, phys. rev. research 4 , 023103 (2022) – published 9 may 2022, benchmarking quantum annealing dynamics: the spin-vector langevin model, david subires, fernando j. gómez-ruiz, antonia ruiz-garcía, daniel alonso, and adolfo del campo, phys. rev. research 4 , 023104 (2022) – published 9 may 2022, to cross or not to cross: collective swimming of escherichia coli under two-dimensional confinement, dipanjan ghosh and xiang cheng, phys. rev. research 4 , 023105 (2022) – published 9 may 2022, lorentz violation in dirac and weyl semimetals, v. alan kostelecký, ralf lehnert, navin mcginnis, marco schreck, and babak seradjeh, phys. rev. research 4 , 023106 (2022) – published 9 may 2022, optimal universal quantum error correction via bounded reference frames, yuxiang yang, yin mo, joseph m. renes, giulio chiribella, and mischa p. woods, phys. rev. research 4 , 023107 (2022) – published 9 may 2022, charge-transfer and d d excitations in agf 2, nimrod bachar, kacper koteras, jakub gawraczynski, waldemar trzciński, józef paszula, riccardo piombo, paolo barone, zoran mazej, giacomo ghiringhelli, abhishek nag, ke-jin zhou, josé lorenzana, dirk van der marel, and wojciech grochala, phys. rev. research 4 , 023108 (2022) – published 9 may 2022, evolution of interorbital superconductor to intraorbital spin-density wave in layered ruthenates, austin w. lindquist, jonathan clepkens, and hae-young kee, phys. rev. research 4 , 023109 (2022) – published 9 may 2022, model for creep failure with healing, subhadeep roy and takahiro hatano, phys. rev. research 4 , 023110 (2022) – published 10 may 2022, controlled creation of quantum skyrmions, pia siegl, elena y. vedmedenko, martin stier, michael thorwart, and thore posske, phys. rev. research 4 , 023111 (2022) – published 10 may 2022, generalized plasma waves in layered superconductors: a unified approach, f. gabriele, c. castellani, and l. benfatto, phys. rev. research 4 , 023112 (2022) – published 11 may 2022, tailored diffraction asymmetries from spatially odd-symmetric phase gratings, shuo hua, yi-mou liu, g. e. lio, xiao-jun zhang, jin-hui wu, m. artoni, and g. c. la rocca, phys. rev. research 4 , 023113 (2022) – published 11 may 2022, topological states in superlattices of hgte class of materials for engineering three-dimensional flat bands, rajibul islam, barun ghosh, giuseppe cuono, alexander lau, wojciech brzezicki, arun bansil, amit agarwal, bahadur singh, tomasz dietl, and carmine autieri, phys. rev. research 4 , 023114 (2022) – published 11 may 2022, nonequilibrium phase transition in a driven-dissipative quantum antiferromagnet, mona h. kalthoff, dante m. kennes, andrew j. millis, and michael a. sentef, phys. rev. research 4 , 023115 (2022) – published 12 may 2022, avalanche structural rearrangements in cold dusty plasma liquids through cascaded coherent excitations of heterogeneous multiscale thermal acoustic waves, hao-wei hu, yi-cheng zhao, and lin i, phys. rev. research 4 , 023116 (2022) – published 13 may 2022, su(2) hyper-clocks: quantum engineering of spinor interferences for time and frequency metrology, t. zanon-willette, d. wilkowski, r. lefevre, a. v. taichenachev, and v. i. yudin, phys. rev. research 4 , 023117 (2022) – published 13 may 2022, redatuming physical systems using symmetric autoencoders, pawan bharadwaj, matthew li, and laurent demanet, phys. rev. research 4 , 023118 (2022) – published 13 may 2022, work relation for determining the mixing free energy of small-scale mixtures, akira yoshida and naoko nakagawa, phys. rev. research 4 , 023119 (2022) – published 13 may 2022, nested-sphere description of the n -level chern number and the generalized bloch hypersphere, cameron j. d. kemp, nigel r. cooper, and f. nur ünal, phys. rev. research 4 , 023120 (2022) – published 13 may 2022, response strengths of open systems at exceptional points, jan wiersig, phys. rev. research 4 , 023121 (2022) – published 16 may 2022, majorana chiral spin liquid in a model for mott insulating cuprates, jaime merino and arnaud ralko, phys. rev. research 4 , 023122 (2022) – published 16 may 2022, critical current density of superconducting-normal-superconducting josephson junctions and polycrystalline superconductors in high magnetic fields, a. i. blair and d. p. hampshire, phys. rev. research 4 , 023123 (2022) – published 16 may 2022, electron-positron pairs and radioactive nuclei production by irradiation of high-z target with γ -photon flash generated by an ultra-intense laser in the λ 3 regime, david kolenatý, prokopis hadjisolomou, roberto versaci, tae moon jeong, petr valenta, veronika olšovcová, and sergei vladimirovich bulanov, phys. rev. research 4 , 023124 (2022) – published 16 may 2022, unbalanced fourth-order interference beyond coherence time, z. y. ou and xiaoying li, phys. rev. research 4 , 023125 (2022) – published 16 may 2022, quantum gaussian process state: a kernel-inspired state with quantum support data, yannic rath and george h. booth, phys. rev. research 4 , 023126 (2022) – published 16 may 2022, prediction of new topological superconductor candidate 1 t − ti ( se 1 − y te y ) 2, wenjun liu, aiyun luo, guyue zhong, jinyu zou, and gang xu, phys. rev. research 4 , 023127 (2022) – published 16 may 2022, linear-time generalized hartree-fock algorithm for quasi-one-dimensional systems, alex meiburg and bela bauer, phys. rev. research 4 , 023128 (2022) – published 16 may 2022, driving quantum systems with periodic conditional measurements, quancheng liu, klaus ziegler, david a. kessler, and eli barkai, phys. rev. research 4 , 023129 (2022) – published 17 may 2022, realizing exceptional points of any order in the presence of symmetry, sharareh sayyad and flore k. kunst, phys. rev. research 4 , 023130 (2022) – published 17 may 2022.

• Mesoscopics

Derivation of a governing rule in triboelectric charging and series from thermoelectricity

Eui-cheol shin, jae-hyeon ko, ho-ki lyeo, and yong-hyun kim, phys. rev. research 4 , 023131 (2022) – published 17 may 2022, room-temperature biphoton source with a spectral brightness near the ultimate limit, jia-mou chen, chia-yu hsu, wei-kai huang, shih-si hsiao, fu-chen huang, yi-hsin chen, chih-sung chuu, ying-cheng chen, yong-fan chen, and ite a. yu, phys. rev. research 4 , 023132 (2022) – published 18 may 2022, long-range superconducting proximity effect in nickel nanowires, jue jiang, weiwei zhao, fei wang, renzhong du, ludi miao, ke wang, qi li, cui-zu chang, and moses h. w. chan, phys. rev. research 4 , 023133 (2022) – published 19 may 2022, sparse interferometry for measuring multiphoton collective phase, jizhou wu and barry c. sanders, phys. rev. research 4 , 023134 (2022) – published 19 may 2022, all-optical stückelberg spectroscopy of strongly driven rydberg states, ulrich bengs, serguei patchkovskii, misha ivanov, and nickolai zhavoronkov, phys. rev. research 4 , 023135 (2022) – published 19 may 2022, approximate amplitude encoding in shallow parameterized quantum circuits and its application to financial market indicators, kouhei nakaji, shumpei uno, yohichi suzuki, rudy raymond, tamiya onodera, tomoki tanaka, hiroyuki tezuka, naoki mitsuda, and naoki yamamoto, phys. rev. research 4 , 023136 (2022) – published 20 may 2022, analytic solution to pseudo-landau levels in strongly bent graphene nanoribbons, tianyu liu and hai-zhou lu, phys. rev. research 4 , 023137 (2022) – published 20 may 2022, neural-network quantum states for periodic systems in continuous space, gabriel pescia, jiequn han, alessandro lovato, jianfeng lu, and giuseppe carleo, phys. rev. research 4 , 023138 (2022) – published 20 may 2022, electric field induced parametric excitation of exchange magnons in a cofeb/mgo junction, angshuman deka, bivas rana, ryo anami, katsuya miura, hiromasa takahashi, yoshichika otani, and yasuhiro fukuma, phys. rev. research 4 , 023139 (2022) – published 20 may 2022, relativistic dynamical inversion in manifestly covariant form, andre g. campos and luca fabbri, phys. rev. research 4 , 023140 (2022) – published 23 may 2022, nonperturbative renormalization of quantum thermodynamics from weak to strong couplings, wei-ming huang and wei-min zhang, phys. rev. research 4 , 023141 (2022) – published 23 may 2022, spin and valley degrees of freedom in a bilayer graphene quantum point contact: zeeman splitting and interaction effects, vanessa gall, rainer kraft, igor v. gornyi, and romain danneau, phys. rev. research 4 , 023142 (2022) – published 24 may 2022, from cooper pair splitting to nonlocal spectroscopy of a shiba state, zoltán scherübl, gergő fülöp, jörg gramich, andrás pályi, christian schönenberger, jesper nygård, and szabolcs csonka, phys. rev. research 4 , 023143 (2022) – published 24 may 2022, multipartite entanglement of the topologically ordered state in a perturbed toric code, yu-ran zhang, yu zeng, tao liu, heng fan, j. q. you, and franco nori, phys. rev. research 4 , 023144 (2022) – published 24 may 2022, individual- and pair-based models of epidemic spreading: master equations and analysis of their forecasting capabilities, federico malizia, luca gallo, mattia frasca, vito latora, and giovanni russo, phys. rev. research 4 , 023145 (2022) – published 24 may 2022, generalized quantum measurements with matrix product states: entanglement phase transition and clusterization, elmer v. h. doggen, yuval gefen, igor v. gornyi, alexander d. mirlin, and dmitry g. polyakov, phys. rev. research 4 , 023146 (2022) – published 24 may 2022, molecular dynamics study of shear-induced long-range correlations in simple fluids, hiroyoshi nakano and yuki minami, phys. rev. research 4 , 023147 (2022) – published 24 may 2022, photoabsorption of potassium clusters isolated in helium droplets: from discrete electronic transitions to collective resonances, roman messner, robert di vora, wolfgang e. ernst, and florian lackner, phys. rev. research 4 , 023148 (2022) – published 24 may 2022, atomic resolution with high-eigenmode tapping mode atomic force microscopy, n. severin, a. r. dzhanoev, h. lin, a. rauf, s. kirstein, c.-a. palma, i. m. sokolov, and j. p. rabe, phys. rev. research 4 , 023149 (2022) – published 24 may 2022, bose-hubbard realization of fracton defects, krzysztof giergiel, ruben lier, piotr surówka, and arkadiusz kosior, phys. rev. research 4 , 023151 (2022) – published 26 may 2022, biexciton-like quartet condensates in an electron-hole liquid, yixin guo (郭一昕), hiroyuki tajima (田島裕之), and haozhao liang (梁豪兆), phys. rev. research 4 , 023152 (2022) – published 25 may 2022, quantifying tripartite spatial and energy-time entanglement in nonlinear optics, james schneeloch, richard j. birrittella, christopher c. tison, gregory a. howland, michael l. fanto, and paul m. alsing, phys. rev. research 4 , 023153 (2022) – published 26 may 2022, qubit-efficient encoding scheme for quantum simulations of electronic structure, yu shee, pei-kai tsai, cheng-lin hong, hao-chung cheng, and hsi-sheng goan, phys. rev. research 4 , 023154 (2022) – published 27 may 2022, robust quantum gates using smooth pulses and physics-informed neural networks, utkan güngördü and j. p. kestner, phys. rev. research 4 , 023155 (2022) – published 27 may 2022, absence of phase transition in random language model, kai nakaishi and koji hukushima, phys. rev. research 4 , 023156 (2022) – published 27 may 2022, minimal dissipation protocols of an instantaneous equilibrium brownian particle under time-dependent temperature and potential variations, yonggun jun (전용근) and pik-yin lai (黎璧賢), phys. rev. research 4 , 023157 (2022) – published 27 may 2022, rate limits in quantum networks with lossy repeaters, riccardo laurenza, nathan walk, jens eisert, and stefano pirandola, phys. rev. research 4 , 023158 (2022) – published 31 may 2022, tensor-network renormalization approach to the q -state clock model, guanrong li, kwok ho pai, and zheng-cheng gu, phys. rev. research 4 , 023159 (2022) – published 31 may 2022, liouvillian skin effect in an exactly solvable model, fan yang, qing-dong jiang, and emil j. bergholtz, phys. rev. research 4 , 023160 (2022) – published 31 may 2022, preparation and verification of tensor network states, esther cruz, flavio baccari, jordi tura, norbert schuch, and j. ignacio cirac, phys. rev. research 4 , 023161 (2022) – published 31 may 2022, proposal for the search for new spin interactions at the micrometer scale using diamond quantum sensors, p.-h. chu, n. ristoff, j. smits, n. jackson, y. j. kim, i. savukov, and v. m. acosta, phys. rev. research 4 , 023162 (2022) – published 31 may 2022, combining machine learning with physics: a framework for tracking and sorting multiple dark solitons, shangjie guo, sophia m. koh, amilson r. fritsch, i. b. spielman, and justyna p. zwolak, phys. rev. research 4 , 023163 (2022) – published 31 may 2022, distributed quantum phase sensing for arbitrary positive and negative weights, changhun oh, liang jiang, and changhyoup lee, phys. rev. research 4 , 023164 (2022) – published 31 may 2022, quantum field theory for spin operator of the photon, li-ping yang, farhad khosravi, and zubin jacob, phys. rev. research 4 , 023165 (2022) – published 31 may 2022, locomotion of magnetoelastic membranes in viscous fluids, chase austyn brisbois and monica olvera de la cruz, phys. rev. research 4 , 023166 (2022) – published 31 may 2022, short-wavelength reverberant wave systems for physical realization of reservoir computing, shukai ma, thomas m. antonsen, steven m. anlage, and edward ott, phys. rev. research 4 , 023167 (2022) – published 31 may 2022, multistable excitonic stark effect, ying xiong, mark s. rudner, and justin c. w. song, phys. rev. research 4 , 023168 (2022) – published 31 may 2022, continuous-variable quantum sensing of a dissipative reservoir, yi-da sha and wei wu, phys. rev. research 4 , 023169 (2022) – published 31 may 2022, microwave sensing of andreev bound states in a gate-defined superconducting quantum point contact, vivek chidambaram, anders kringhøj, lucas casparis, ferdinand kuemmeth, tiantian wang, candice thomas, sergei gronin, geoffrey c. gardner, zhengyi cui, chenlu liu, kristof moors, michael j. manfra, karl d. petersson, and malcolm r. connolly, phys. rev. research 4 , 023170 (2022) – published 31 may 2022, curvature strains as a global orchestrator of morphogenesis, julius b. kirkegaard, phys. rev. research 4 , 023171 (2022) – published 31 may 2022, laser manipulation of spin-exchange interaction between alkaline-earth atoms in 1 s 0 and 3 p 2 states, shu yang, yue chen, and peng zhang, phys. rev. research 4 , 023173 (2022) – published 1 june 2022, symbolic genetic algorithm for discovering open-form partial differential equations (sga-pde), yuntian chen, yingtao luo, qiang liu, hao xu, and dongxiao zhang, phys. rev. research 4 , 023174 (2022) – published 1 june 2022, low-energy structure of spiral spin liquids, han yan (闫寒) and johannes reuther, phys. rev. research 4 , 023175 (2022) – published 1 june 2022, nematic confined phases in the u(1) quantum link model on a triangular lattice: near-term quantum computations of string dynamics on a chip, d. banerjee, s. caspar, f.-j. jiang, j.-h. peng, and u.-j. wiese, phys. rev. research 4 , 023176 (2022) – published 1 june 2022, zeros of green functions in topological insulators, takahiro misawa and youhei yamaji, phys. rev. research 4 , 023177 (2022) – published 2 june 2022, quantum limits to classically spoofing an electromagnetic signal, jonathan n. blakely and shawn d. pethel, phys. rev. research 4 , 023178 (2022) – published 2 june 2022, observing a topological transition in weak-measurement-induced geometric phases, yunzhao wang, kyrylo snizhko, alessandro romito, yuval gefen, and kater murch, phys. rev. research 4 , 023179 (2022) – published 3 june 2022, extreme vorticity events in turbulent rayleigh-bénard convection from stereoscopic measurements and reservoir computing, valentina valori, robert kräuter, and jörg schumacher, phys. rev. research 4 , 023180 (2022) – published 3 june 2022, critical magnetic fluctuations in the layered ruthenates ca 2 ruo 4 and ca 3 ru 2 o 7, h. trepka, t. keller, m. krautloher, j. xu, k. habicht, m. böhm, b. keimer, and m. hepting, phys. rev. research 4 , 023181 (2022) – published 3 june 2022, unraveling trajectories of diffusive particles on networks, yunhao sun, zexi yu, christopher j. obara, keshav mittal, jennifer lippincott-schwartz, and elena f. koslover, phys. rev. research 4 , 023182 (2022) – published 6 june 2022, hyperfine dependent atom-molecule loss analyzed by the analytic solution of few-body loss equations, kai k. voges, philipp gersema, torsten hartmann, silke ospelkaus, and alessandro zenesini, phys. rev. research 4 , 023184 (2022) – published 6 june 2022, multiloop functional renormalization group approach to quantum spin systems, dominik kiese, tobias müller, yasir iqbal, ronny thomale, and simon trebst, phys. rev. research 4 , 023185 (2022) – published 6 june 2022, cell motility in confluent tissues induced by substrate disorder, diogo e. p. pinto, margarida m. telo da gama, and nuno a. m. araújo, phys. rev. research 4 , 023186 (2022) – published 6 june 2022, hierarchical structure of the energy landscape in the voronoi model of dense tissue, diogo e. p. pinto, daniel m. sussman, margarida m. telo da gama, and nuno a. m. araújo, phys. rev. research 4 , 023187 (2022) – published 6 june 2022, landau levels of the euler class topology, yifei guan, adrien bouhon, and oleg v. yazyev, phys. rev. research 4 , 023188 (2022) – published 6 june 2022, enhanced purcell factor for nanoantennas supporting interfering resonances, rémi colom, felix binkowski, fridtjof betz, yuri kivshar, and sven burger, phys. rev. research 4 , 023189 (2022) – published 6 june 2022, simulating strongly interacting hubbard chains with the variational hamiltonian ansatz on a quantum computer, baptiste anselme martin, pascal simon, and marko j. rančić, phys. rev. research 4 , 023190 (2022) – published 6 june 2022, subnanokelvin thermometry of an interacting d -dimensional homogeneous bose gas, muhammad miskeen khan, mohammad mehboudi, hugo terças, maciej lewenstein, and miguel angel garcia-march, phys. rev. research 4 , 023191 (2022) – published 6 june 2022, probability distribution functions of sub- and superdiffusive systems, fabio cecconi, giulio costantini, alessandro taloni, and angelo vulpiani, phys. rev. research 4 , 023192 (2022) – published 6 june 2022, dirac states in an inclined two-dimensional su-schrieffer-heeger model, chang-an li, sang-jun choi, song-bo zhang, and björn trauzettel, phys. rev. research 4 , 023193 (2022) – published 6 june 2022, nonperturbative waveguide quantum electrodynamics, yuto ashida, takeru yokota, ataç i̇mamoğlu, and eugene demler, phys. rev. research 4 , 023194 (2022) – published 6 june 2022, information-theoretic formulation of dynamical systems: causality, modeling, and control, adrián lozano-durán and gonzalo arranz, phys. rev. research 4 , 023195 (2022) – published 6 june 2022, absence of spin susceptibility decrease in a bulk organic superconductor with triangular lattice, y. saitou, n. ichikawa, r. yamamoto, d. kitamata, m. suzuki, y. yanagita, t. namaizawa, s. komuro, t. furukawa, r. kato, and t. itou, phys. rev. research 4 , 023196 (2022) – published 6 june 2022, spin seebeck coefficient and spin-thermal diffusion in the two-dimensional hubbard model, jernej mravlje, martin ulaga, and jure kokalj, phys. rev. research 4 , 023197 (2022) – published 7 june 2022, giant atoms with time-dependent couplings, lei du, yao-tong chen, yan zhang, and yong li, phys. rev. research 4 , 023198 (2022) – published 7 june 2022, approximate distillation of quantum coherence, c. l. liu and c. p. sun, phys. rev. research 4 , 023199 (2022) – published 8 june 2022, many-body entanglement and topology from uncertainties and measurement-induced modes, kim pöyhönen, ali g. moghaddam, and teemu ojanen, phys. rev. research 4 , 023200 (2022) – published 8 june 2022, periodicities in a multiply connected geometry from quenched dynamics, zhi-hong li and hai-qing zhang, phys. rev. research 4 , 023201 (2022) – published 8 june 2022, broadened yu-shiba-rusinov states in dirty superconducting films and heterostructures, s. s. babkin, a. a. lyublinskaya, and i. s. burmistrov, phys. rev. research 4 , 023202 (2022) – published 8 june 2022, overdamped phase diffusion in hbn encapsulated graphene josephson junctions, j. tang, m. t. wei, a. sharma, e. g. arnault, a. seredinski, y. mehta, k. watanabe, t. taniguchi, f. amet, and i. borzenets, phys. rev. research 4 , 023203 (2022) – published 10 june 2022, singular optimal driving cycles of stochastic pumps, ilana bogod and saar rahav, phys. rev. research 4 , 023204 (2022) – published 10 june 2022, effect of hydrostatic pressure on the quantum paraelectric state of dipolar coupled water molecular network, y. t. chan, e. uykur, m. a. belyanchikov, m. dressel, v. a. abalmasov, v. thomas, e. s. zhukova, and b. gorshunov, phys. rev. research 4 , 023205 (2022) – published 13 june 2022, questioning the question: exploring how physical degrees of freedom are retrieved with neural networks, joeri lenaerts and vincent ginis, phys. rev. research 4 , 023206 (2022) – published 13 june 2022, dicke superradiance in ordered lattices: dimensionality matters, eric sierra, stuart j. masson, and ana asenjo-garcia, phys. rev. research 4 , 023207 (2022) – published 13 june 2022, graphene as a source of entangled plasmons, zhiyuan sun, d. n. basov, and m. m. fogler, phys. rev. research 4 , 023208 (2022) – published 13 june 2022, charge ambiguity and splitting of monopoles, toni annala and mikko möttönen, phys. rev. research 4 , 023209 (2022) – published 13 june 2022, multifidelity deep neural operators for efficient learning of partial differential equations with application to fast inverse design of nanoscale heat transport, lu lu, raphaël pestourie, steven g. johnson, and giuseppe romano, phys. rev. research 4 , 023210 (2022) – published 13 june 2022, topological synchronization of coupled nonlinear oscillators, kazuki sone, yuto ashida, and takahiro sagawa, phys. rev. research 4 , 023211 (2022) – published 13 june 2022, from neuronal spikes to avalanches: effects and circumvention of time binning, johannes pausch, phys. rev. research 4 , 023212 (2022) – published 14 june 2022, micro-foundation of opinion dynamics: rich consequences of the weighted-median mechanism, wenjun mei, francesco bullo, ge chen, julien m. hendrickx, and florian dörfler, phys. rev. research 4 , 023213 (2022) – published 14 june 2022, self-learning emulators and eigenvector continuation, avik sarkar and dean lee, phys. rev. research 4 , 023214 (2022) – published 15 june 2022, emergent nematicity and intrinsic versus extrinsic electronic scattering processes in the kagome metal csv 3 sb 5, dirk wulferding, seungyeol lee, youngsu choi, qiangwei yin, zhijun tu, chunsheng gong, hechang lei, saqlain yousuf, jaegu song, hanoh lee, tuson park, and kwang-yong choi, phys. rev. research 4 , 023215 (2022) – published 15 june 2022, quantum simulation of the lindblad equation using a unitary decomposition of operators, anthony w. schlimgen, kade head-marsden, leeann m. sager, prineha narang, and david a. mazziotti, phys. rev. research 4 , 023216 (2022) – published 15 june 2022, irreversible efficiency and carnot theorem for heat engines operating with multiple heat baths in linear response regime, yuki izumida, phys. rev. research 4 , 023217 (2022) – published 16 june 2022, thermodynamic engine powered by anisotropic fluctuations, olga movilla miangolarra, amirhossein taghvaei, yongxin chen, and tryphon t. georgiou, phys. rev. research 4 , 023218 (2022) – published 16 june 2022, hybrid quantum-classical algorithm for computing imaginary-time correlation functions, rihito sakurai, wataru mizukami, and hiroshi shinaoka, phys. rev. research 4 , 023219 (2022) – published 16 june 2022, hidden spatiotemporal sequence in transition to shear band in amorphous solids, zeng-yu yang, yun-jiang wang, and lan-hong dai, phys. rev. research 4 , 023220 (2022) – published 16 june 2022, steady state entanglement of distant nitrogen-vacancy centers in a coherent thermal magnon bath, kamran ullah, emre köse, rawana yagan, mehmet c. onbaşlı, and özgür e. müstecaplıoğlu, phys. rev. research 4 , 023221 (2022) – published 17 june 2022, generalized hyper-ramsey-bordé matter-wave interferometry: quantum engineering of robust atomic sensors with composite pulses, phys. rev. research 4 , 023222 (2022) – published 17 june 2022, ab initio investigation of h-bond disordering in δ-alooh, chenxing luo, koichiro umemoto, and renata m. wentzcovitch, phys. rev. research 4 , 023223 (2022) – published 17 june 2022, worldwide bilateral geopolitical interactions network inferred from national disciplinary profiles, m. g. izzo, c. daraio, l. leuzzi, g. quaglia, and g. ruocco, phys. rev. research 4 , 023224 (2022) – published 21 june 2022, evolving objective function for improved variational quantum optimization, ioannis kolotouros and petros wallden, phys. rev. research 4 , 023225 (2022) – published 21 june 2022, exploration of the stratosphere with cosmic-ray muons detected underground, c. taricco et al. (lvd collaboration), phys. rev. research 4 , 023226 (2022) – published 21 june 2022, rare events and disorder control the brittle yielding of well-annealed amorphous solids, misaki ozawa, ludovic berthier, giulio biroli, and gilles tarjus, phys. rev. research 4 , 023227 (2022) – published 21 june 2022, volumes of parent hamiltonians for benchmarking quantum simulators, maría garcía díaz, gael sentís, ramon muñoz tapia, and anna sanpera, phys. rev. research 4 , 023228 (2022) – published 21 june 2022, thermodynamic role of main reaction pathway and multi-body information flow in membrane transport, satoshi yoshida, yasushi okada, eiro muneyuki, and sosuke ito, phys. rev. research 4 , 023229 (2022) – published 21 june 2022, quantum fluctuation theorem for dissipative processes, gabriele de chiara and alberto imparato, phys. rev. research 4 , 023230 (2022) – published 21 june 2022, transport of spin and mass at normal-superfluid interfaces in the unitary fermi gas, ding zhang and ariel t. sommer, phys. rev. research 4 , 023231 (2022) – published 21 june 2022, superconductivity in monolayer fese enhanced by quantum geometry, taisei kitamura, tatsuya yamashita, jun ishizuka, akito daido, and youichi yanase, phys. rev. research 4 , 023232 (2022) – published 21 june 2022, small mode volume topological photonic states in one-dimensional lattices with dipole-quadrupole interactions, raymond p. h. wu and h. c. ong, phys. rev. research 4 , 023233 (2022) – published 21 june 2022, sloppy gear mechanism for coupled stochastic transportation: from antiequilibrium flow to kinetic selectivity, chase slowey and zhiyue lu, phys. rev. research 4 , 023234 (2022) – published 21 june 2022, scattering phase delay and momentum transfer of light in disordered media, pavel yazhgur, geoffroy j. aubry, luis s. froufe-pérez, and frank scheffold, phys. rev. research 4 , 023235 (2022) – published 22 june 2022, superfluid spin transistor, edward schwartz, bo li, and alexey a. kovalev, phys. rev. research 4 , 023236 (2022) – published 23 june 2022.

• Spintronics

Tight bound for estimating expectation values from a system of linear equations 

Abhijeet alase, robert r. nerem, mohsen bagherimehrab, peter høyer, and barry c. sanders, phys. rev. research 4 , 023237 (2022) – published 24 june 2022, building separable approximations for quantum states via neural networks, antoine girardin, nicolas brunner, and tamás kriváchy, phys. rev. research 4 , 023238 (2022) – published 24 june 2022, spin wave stiffness and damping in a frustrated chiral helimagnet co 8 zn 8 mn 4 as measured by small-angle neutron scattering, v. ukleev, k. a. pschenichnyi, o. utesov, k. karube, s. mühlbauer, r. cubitt, y. tokura, y. taguchi, j. s. white, and s. v. grigoriev, phys. rev. research 4 , 023239 (2022) – published 24 june 2022, inferring couplings in networks across order-disorder phase transitions, vudtiwat ngampruetikorn, vedant sachdeva, johanna torrence, jan humplik, david j. schwab, and stephanie e. palmer, phys. rev. research 4 , 023240 (2022) – published 24 june 2022, superconducting density of states and band structure at the surface of the candidate topological superconductor au 2 pb, francisco martín-vega, edwin herrera, beilun wu, víctor barrena, federico mompeán, mar garcía-hernández, paul c. canfield, annica m. black-schaffer, josé j. baldoví, isabel guillamón, and hermann suderow, phys. rev. research 4 , 023241 (2022) – published 27 june 2022, origin of the fractional derivative and fractional non-markovian continuous-time processes, p. van mieghem, phys. rev. research 4 , 023242 (2022) – published 27 june 2022, reducing unitary coupled cluster circuit depth by classical stochastic amplitude prescreening, maria-andreea filip, nathan fitzpatrick, david muñoz ramo, and alex j. w. thom, phys. rev. research 4 , 023243 (2022) – published 27 june 2022, time-reversal symmetry broken by charge order in csv 3 sb 5, rustem khasanov, debarchan das, ritu gupta, charles mielke, iii, matthias elender, qiangwei yin, zhijun tu, chunsheng gong, hechang lei, ethan t. ritz, rafael m. fernandes, turan birol, zurab guguchia, and hubertus luetkens, phys. rev. research 4 , 023244 (2022) – published 27 june 2022, narrow-line imaging of single strontium atoms in shallow optical tweezers, alexander urech, ivo h. a. knottnerus, robert j. c. spreeuw, and florian schreck, phys. rev. research 4 , 023245 (2022) – published 27 june 2022, high schmidt-number turbulent advection and giant concentration fluctuations, gregory eyink and amir jafari, phys. rev. research 4 , 023246 (2022) – published 27 june 2022, odd-even layer-number effect of valence-band spin splitting in wte 2, masato sakano, yuma tanaka, satoru masubuchi, shota okazaki, takuya nomoto, atsushi oshima, kenji watanabe, takashi taniguchi, ryotaro arita, takao sasagawa, tomoki machida, and kyoko ishizaka, phys. rev. research 4 , 023247 (2022) – published 27 june 2022, mesoscopic transport signatures of disorder-induced non-hermitian phases, benjamin michen and jan carl budich, phys. rev. research 4 , 023248 (2022) – published 27 june 2022, quantum approximate optimization algorithm with adaptive bias fields, yunlong yu, chenfeng cao, carter dewey, xiang-bin wang, nic shannon, and robert joynt, phys. rev. research 4 , 023249 (2022) – published 27 june 2022, electron tunneling spectroscopy of an anisotropic kitaev quantum spin liquid sandwiched between superconductors, shi-qing jia, liang-jian zou, ya-min quan, xiang-long yu, and hai-qing lin, phys. rev. research 4 , 023251 (2022) – published 28 june 2022, speeding up quantum adiabatic processes with a dynamical quantum geometric tensor, jin-fu chen, phys. rev. research 4 , 023252 (2022) – published 28 june 2022, current-driven spiral domain wall in a ferrimagnet near the magnetization compensation point, jia-lin liu, peng-bin he, and meng-qiu cai, phys. rev. research 4 , 023253 (2022) – published 29 june 2022, dynamics and mechanism of a deswelling transition of the sponge phase in a bilayer membrane system, rei kurita, takumi kanazawa, yukihiro terada, and marie tani, phys. rev. research 4 , 023254 (2022) – published 29 june 2022.

• Physical Chemistry

Geometric framework to predict structure from function in neural networks

Tirthabir biswas and james e. fitzgerald, phys. rev. research 4 , 023255 (2022) – published 29 june 2022.

The authors introduce a geometric formalism that determines when and how two neurons must be synaptically connected.

Controlling magnetic exchange and anisotropy by nonmagnetic ligand substitution in layered M P X 3 ( M = Ni , Mn; X = S , Se)

Rabindra basnet, kamila m. kotur, milosz rybak, cory stephenson, samuel bishop, carmine autieri, magdalena birowska, and jin hu, phys. rev. research 4 , 023256 (2022) – published 29 june 2022, dimension reduction of dynamical systems on networks with leading and non-leading eigenvectors of adjacency matrices, naoki masuda and prosenjit kundu, phys. rev. research 4 , 023257 (2022) – published 30 june 2022, nonliquid cellular states: gluing gauge-higher-symmetry-breaking versus gauge-higher-symmetry-extension interfacial defects, phys. rev. research 4 , 023258 (2022) – published 30 june 2022, incoherent control of two-photon induced optical measurements in open quantum systems: quantum heat engine perspective, md qutubuddin and konstantin e. dorfman, phys. rev. research 4 , 023259 (2022) – published 30 june 2022, erratum: unified theory of vibrational spectra in hard amorphous materials [phys. rev. research 2 , 013267 (2020)], a. zaccone and m. baggioli, phys. rev. research 4 , 029001 (2022) – published 13 june 2022, erratum: unified description of cuprate superconductors using a four-band d − p model [phys. rev. research 3 , 033157 (2021)], hiroshi watanabe, tomonori shirakawa, kazuhiro seki, hirofumi sakakibara, takao kotani, hiroaki ikeda, and seiji yunoki, phys. rev. research 4 , 029002 (2022) – published 17 june 2022, erratum: expressive power of parametrized quantum circuits [phys. rev. research 2, 033125 (2020)], yuxuan du, min-hsiu hsieh, tongliang liu, and dacheng tao, phys. rev. research 4 , 029003 (2022) – published 24 june 2022.

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Physical Review Research

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Volume 6, Issue 3 (partial)

June - august 2024, observation of highly correlated ultrabright biphotons through increased atomic ensemble density in spontaneous four-wave mixing, jiun-shiuan shiu, zi-yu liu, chin-yao cheng, yu-chiao huang, ite a. yu, ying-cheng chen, chih-sung chuu, che-ming li, shiang-yu wang, and yong-fan chen, phys. rev. research 6 , l032001 (2024) – published 1 july 2024.

An inherent pairing ratio in spontaneous four-wave mixing within an atomic ensemble represents the ratio of temporally correlated biphotons generated through stimulated four-wave mixing to total scattered photons in a specific direction. The experiment demonstrates ultrabright biphoton generation and shows that this pairing ratio improves with increased atomic ensemble density.

Show Abstract

• Quantum Physics

Progressive polymer deformation induced by polar activity and the influence of inertia

Andrés r. tejedor, jorge ramírez, and marisol ripoll, phys. rev. research 6 , l032002 (2024) – published 1 july 2024.

Polar activity is shown to induce a progressive local deformation of linear polymer chains, making a clear distinction between head and tail, while the overall chain conformation becomes more compact.

• Soft Matter

Hidden quantum criticality and entanglement in quench dynamics

Sanku paul, paraj titum, and mohammad maghrebi, phys. rev. research 6 , l032003 (2024) – published 3 july 2024.

Universality is at the heart of an equilibrium phase transition. This article unveils the emergence of universal quantum critical behavior in quench dynamics.

• Quantum Information

Artificial neural network syndrome decoding on IBM quantum processors

Brhyeton hall, spiro gicev, and muhammad usman, phys. rev. research 6 , l032004 (2024) – published 8 july 2024.

A machine-learning-based quantum error-correction decoder is trained and implemented on IBM quantum hardware through cloud access, demonstrating the capability to accurately decode complex errors on experimental devices.

Upper limit on the chiral magnetic effect in isobar collisions at the Relativistic Heavy-Ion Collider

M. i. abdulhamid et al. (star collaboration), phys. rev. research 6 , l032005 (2024) – published 9 july 2024.

The anticipated chiral-magnetic-effect (CME)-related charge separation was not measured to be larger in 44 96 Ru + 44 96 Ru than in 40 96 Zr + 40 96 Zr collisions because the flow-induced backgrounds do not fully cancel due to nuclear structure differences between the two isobar nuclei. Properly taking this, as well as the next-level nonflow-related backgrounds, into account, the charge separation results are consistent between the isobar systems, and an upper limit of 10% of the CME signal is extracted at a 95% confidence level.

• Nuclear Physics

Bound Bogoliubov quasiparticles in photon superfluids

Marzena ciszak and francesco marino, phys. rev. research 6 , l032006 (2024) – published 9 july 2024.

The weakly nonlinear regime of a one-dimensional photon superfluid is characterized by the emergence of bound Bogoliubov quasiparticles, secondary collective excitations originating from nonresonant interactions between Bogoliubov modes. These processes, which are revealed by a structure of additional branches in the dispersion relation, do not depend on the specific superfluid under consideration but are inherent in the nonlinear dynamics of collective excitations.

Disentangling high-order effects in the transfer entropy

Sebastiano stramaglia, luca faes, jesus m. cortes, and daniele marinazzo, phys. rev. research 6 , l032007 (2024) – published 9 july 2024.

Transfer entropy is the primary method for determining the information flow from a driver to a target time series. A study shows how it can be decomposed into pure two-body effects and higher-order ones, the latter consisting of information shared with the driver with the rest of the environment, which can be synergistic or redundant. An application to El Niño and the Southern Oscillation is presented.

• Statistical Physics

Multimode physics of the unimon circuit

Sasu tuohino, vasilii vadimov, wallace teixeira, tommi malmelin, matti silveri, and mikko möttönen, phys. rev. research 6 , 033001 (2024) – published 1 july 2024, beyond pairwise: higher-order physical interactions affect phase separation in multicomponent liquids, chengjie luo, yicheng qiang, and david zwicker, phys. rev. research 6 , 033002 (2024) – published 1 july 2024.

• Biological Physics

Global synchronization in generalized multilayer higher-order networks

Palash kumar pal, md sayeed anwar, matjaž perc, and dibakar ghosh, phys. rev. research 6 , 033003 (2024) – published 1 july 2024.

• Nonlinear Dynamics

High-dimensional two-photon quantum controlled phase-flip gate

Mingyuan chen, jiang-shan tang, miao cai, yanqing lu, franco nori (野理), and keyu xia (夏可宇), phys. rev. research 6 , 033004 (2024) – published 1 july 2024, thermodynamically optimal protocols for dual-purpose qubit operations, joe dunlop, federico cerisola, jorge tabanera-bravo, and janet anders, phys. rev. research 6 , 033005 (2024) – published 1 july 2024, moving frame theory of zero-bias photocurrent on the surface of topological insulators, s. a. jafari, phys. rev. research 6 , 033006 (2024) – published 1 july 2024.

• Condensed Matter Physics
• Topological Insulators

Hawking-Page transition on a spin chain

David pérez-garcía, leonardo santilli, and miguel tierz, phys. rev. research 6 , 033007 (2024) – published 1 july 2024.

• Particles and Fields

Autonomous dynamics of two-dimensional insulating domain with superclimbing edges

Anatoly kuklov, nikolay prokof'ev, and boris svistunov, phys. rev. research 6 , 033008 (2024) – published 1 july 2024.

• Atomic and Molecular Physics

Feedback cooling a levitated nanoparticle's libration to below 100 phonons

Jialiang gao, fons van der laan, joanna a. zielińska, andrei militaru, lukas novotny, and martin frimmer, phys. rev. research 6 , 033009 (2024) – published 1 july 2024, high harmonic generation from an atom in a squeezed-vacuum environment, shijun wang, shaogang yu, xuanyang lai, and xiaojun liu, phys. rev. research 6 , 033010 (2024) – published 1 july 2024, minigap-induced negative differential resistance in multilayer mo s 2 -based tunnel junctions, seiya kawasaki, kei kinoshita, rai moriya, momoko onodera, yijin zhang, kenji watanabe, takashi taniguchi, takao sasagawa, and tomoki machida, phys. rev. research 6 , 033011 (2024) – published 1 july 2024, illuminating the bragg intersections as roots of dirac nodal lines and high-order van hove singularities, ryosuke akashi, phys. rev. research 6 , 033012 (2024) – published 1 july 2024, searching for new fundamental interactions via isotopic shifts in molecular lattice clocks, e. tiberi, m. borkowski, b. iritani, r. moszynski, and t. zelevinsky, phys. rev. research 6 , 033013 (2024) – published 1 july 2024, remote response modes on the paced excitable c. elegans network, yu qian, zhili chen, runru yang, hongyan gao, zhao lei, and zhigang zheng, phys. rev. research 6 , 033014 (2024) – published 2 july 2024.

• Complex Systems

Impact of nanometer-thin stiff layer on adhesion to rough surfaces

Shubhendu kumar, babu gaire, b. n. j. persson, and ali dhinojwala, phys. rev. research 6 , 033015 (2024) – published 2 july 2024, emergence of odd elasticity in a microswimmer using deep reinforcement learning, li-shing lin, kento yasuda, kenta ishimoto, and shigeyuki komura, phys. rev. research 6 , 033016 (2024) – published 2 july 2024.

• Fluid Dynamics

Accelerating analysis of Boltzmann equations using Gaussian mixture models: Application to quantum Bose-Fermi mixtures

Pavel e. dolgirev, kushal seetharam, márton kanász-nagy, carsten robens, zoe z. yan, martin zwierlein, and eugene demler, phys. rev. research 6 , 033017 (2024) – published 2 july 2024, deconfined quantum criticality of nodal d -wave superconductivity, néel order, and charge order on the square lattice at half-filling, maine christos, henry shackleton, subir sachdev, and zhu-xi luo, phys. rev. research 6 , 033018 (2024) – published 2 july 2024.

• Strongly Correlated Materials
• Superconductivity

Hamiltonian quantum generative adversarial networks

Leeseok kim, seth lloyd, and milad marvian, phys. rev. research 6 , 033019 (2024) – published 3 july 2024, kerr nonlinearity induced nonreciprocity in dissipatively coupled resonators, qingtian miao and g. s. agarwal, phys. rev. research 6 , 033020 (2024) – published 3 july 2024, temporal entropy and the complexity of computing the expectation value of local operators after a quench, stefano carignano, carlos ramos marimón, and luca tagliacozzo, phys. rev. research 6 , 033021 (2024) – published 3 july 2024, probing magnetic and triplet correlations in spin-split superconductors with magnetic impurities, c.-h. huang, a. skurativska, f. s. bergeret, and m. a. cazalilla, phys. rev. research 6 , 033022 (2024) – published 3 july 2024.

• Mesoscopics

Periodic quantum Rabi model with cold atoms at deep strong coupling

Geram hunanyan, johannes koch, stefanie moll, enrique rico, enrique solano, and martin weitz, phys. rev. research 6 , 033023 (2024) – published 3 july 2024, active tension and membrane friction mediate cortical flows and blebbing in a model actomyosin cortex, r. sakamoto and m. p. murrell, phys. rev. research 6 , 033024 (2024) – published 3 july 2024, pt -symmetry-enabled stable modes in a multicore fiber, tamara gratcheva, yogesh n. joglekar, and jay gopalakrishnan, phys. rev. research 6 , 033025 (2024) – published 3 july 2024, electric double layer in ionic liquids: a result of interplay between coupling effects and phase demixing, yeongkyu lee, junbeom cho, yongkyu lee, won bo lee, and yongseok jho, phys. rev. research 6 , 033026 (2024) – published 8 july 2024, srcu ( oh ) 3 cl , an isolated equilateral triangle spin s = 1 / 2 model system, sudip pal, petr doležal, scott a. strøm, sylvain bertaina, andrej pustogow, reinhard k. kremer, martin dressel, and pascal puphal, phys. rev. research 6 , 033027 (2024) – published 8 july 2024, numerical simulation of dynamics behavior of pulsed-dc helium plasma jet confined by parallel magnetic field at atmospheric pressure, yinghua liu, peiqi yin, boping xu, dawei liu, liangwen pi, yuxi fu, yishan wang, wei zhao, and jie tang, phys. rev. research 6 , 033028 (2024) – published 8 july 2024.

• Plasma Physics

Random coordinate descent: A simple alternative for optimizing parameterized quantum circuits

Zhiyan ding, taehee ko, jiahao yao, lin lin, and xiantao li, phys. rev. research 6 , 033029 (2024) – published 8 july 2024, exact steady states in the asymmetric simple exclusion process beyond one dimension, yuki ishiguro and jun sato, phys. rev. research 6 , 033030 (2024) – published 8 july 2024, quantum spin supersolid as a precursory dirac spin liquid in a triangular lattice antiferromagnet, haichen jia, bowen ma, z. d. wang, and gang chen, phys. rev. research 6 , 033031 (2024) – published 8 july 2024, magnetotransport of fluxoids in intermediate-phase type-ii superconducting nbn thin films around t c, sai vaishnavi kanduri, sahitya v. vegesna, danilo bürger, zichao li, detlef born, and heidemarie schmidt, phys. rev. research 6 , 033032 (2024) – published 8 july 2024.

• Materials Science

Adaptive diversity-based quantum circuit architecture search

Yuhan huang, siyuan jin, bei zeng, and qiming shao, phys. rev. research 6 , 033033 (2024) – published 8 july 2024, efficient factored gradient descent algorithm for quantum state tomography, yong wang, lijun liu, shuming cheng, li li, and jie chen, phys. rev. research 6 , 033034 (2024) – published 8 july 2024, exponentially improved efficient machine learning for quantum many-body states with provable guarantees, yanming che, clemens gneiting, and franco nori, phys. rev. research 6 , 033035 (2024) – published 8 july 2024.

• Computational Physics

Efficient and secure quantum secret sharing for eight users

Yue qin, jialin cheng, jingxu ma, di zhao, zhihui yan, xiaojun jia, changde xie, and kunchi peng, phys. rev. research 6 , 033036 (2024) – published 8 july 2024, entropy production rate and correlations in a cavity magnomechanical system, collins o. edet, muhammad asjad, denys dutykh, norshamsuri ali, and obinna abah, phys. rev. research 6 , 033037 (2024) – published 8 july 2024, programmable xy-type couplings through parallel spin-dependent forces on the same trapped ion motional modes, nikhil kotibhaskar, chung-you shih, sainath motlakunta, anthony vogliano, lewis hahn, yu-ting chen, and rajibul islam, phys. rev. research 6 , 033038 (2024) – published 8 july 2024, characterizing localization effects in an ultracold disordered fermi gas by diffusion analysis, sian barbosa, maximilian kiefer-emmanouilidis, felix lang, jennifer koch, and artur widera, phys. rev. research 6 , 033039 (2024) – published 8 july 2024, reconciling mean-squared radius differences in the silver chain through improved measurement and ab initio calculations, b. ohayon, j. e. padilla-castillo, s. c. wright, g. meijer, and b. k. sahoo, phys. rev. research 6 , 033040 (2024) – published 8 july 2024, global sampling of feynman's diagrams through normalizing flow, luca leoni and cesare franchini, phys. rev. research 6 , 033041 (2024) – published 8 july 2024, deterministic discrete-time quantum walk search on complete bipartite graphs, fangjie peng, meng li, and xiaoming sun, phys. rev. research 6 , 033042 (2024) – published 9 july 2024, entropic uncertainty principle for mixed states, antonio f. rotundo and rené schwonnek, phys. rev. research 6 , 033043 (2024) – published 9 july 2024.

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SrCu ( OH ) 3 Cl , an isolated equilateral triangle spin S = 1 / 2 model system

Sudip pal, petr doležal, scott a. strøm, sylvain bertaina, andrej pustogow, reinhard k. kremer, martin dressel, and pascal puphal, phys. rev. research 6 , 033027 – published 8 july 2024.

• No Citing Articles
• INTRODUCTION:
• EXPERIMENTAL DETAILS
• RESULTS AND DISCUSSIONS
• ACKNOWLEDGMENTS

We have investigated the magnetic ground state properties of the quantum spin trimer compound strontium hydroxy copper chloride SrCu ( OH ) 3 Cl using bulk magnetization, specific heat measurements, nuclear magnetic resonance (NMR), and electron spin resonance (ESR) spectroscopy. SrCu ( OH ) 3 Cl consists of layers with isolated Cu 2 + triangles and hence provides an opportunity to understand the magnetic ground state of an isolated system of S = 1/2 arranged on an equilateral triangle. Although magnetization measurements do not exhibit a phase transition to a long-range ordered state down to T = 2 K, they reveal the characteristic behavior of isolated trimers with an exchange of J = 154  K. The Curie-Weiss behavior changes around 50–80 K, as is also seen in the NMR spin-lattice relaxation rate. In zero magnetic field, our specific heat data establish a second-order phase transition to an antiferromagnetic ground state below T = 1.2 K. We have drawn a magnetic field-temperature ( H − T ) phase diagram based on the specific heat measurements. The ESR data show divergence of the linewidth at lower temperatures, which precedes the phase transition to an antiferromagnetic long-range ordered state with unconventional critical exponents. The temperature variation of the g -factor further confirms the antiferromagnetic phase transition and reflects the underlying magnetocrystalline anisotropy of the compound.

• Received 22 January 2024
• Accepted 14 June 2024

DOI: https://doi.org/10.1103/PhysRevResearch.6.033027

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Open access publication funded by Max Planck Society.

Published by the American Physical Society

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Authors & Affiliations

• 1 1. Physikalisches Institut, Universität Stuttgart , Pfaffenwaldring 57, 70569 Stuttgart, Germany
• 2 Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University , Ke Karlovu 5, 121 16 Prague 2, Czech Republic
• 3 Institute of Solid State Physics, TU Wien , 1040 Vienna, Austria
• 4 CNRS, Aix-Marseille Université , IM2NP (UMR 7334), Institut Matériaux Microélectronique et Nanosciences de Provence, Marseille, France
• 5 Max-Planck-Institute for Solid State Research , Heisenbergstraße 1, 70569 Stuttgart, Germany
• * Contact author: [email protected]
• † Contact author: [email protected]
• ‡ Contact author: [email protected]
• § Contact author: [email protected]

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Vol. 6, Iss. 3 — July - September 2024

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Crystal structure of SrCu ( OH ) 3 Cl . (a) Arrangement of the Cu isosceles triangles. A unit cell is outlined. (b) Coordination of Cu by oxygen and chlorine atoms. The blue/green, red, yellow spheres represent Cu, O, and Cl atoms, respectively.

X-ray diffraction of SrCu ( OH ) 3 Cl single crystals: (a) Laue diffraction along the a axis, (b) picture of a single crystal with axis indication, (c) single crystal diffraction map of the (h0l) plane, and (d) powder diffraction pattern of crushed crystals.

(a) Temperature dependence of dc magnetic susceptibility along three crystallographic directions measured at μ 0 H = 1 T (notably the three curves lie nearly indistinguishable atop each other). In the same figure the black points with the right axis give the temperature variation of the inverse susceptibility ( χ − 1 = H / M ) along the a -axis, where the red lines are the Curie-Weiss fits at high and low temperatures. The magnitude of the H / M is shown on the right axis. Inset shows the frequency dependence of ac susceptibility at low temperatures. (b) shows the fitting of the inverse susceptibility assuming isotropic exchange interaction between spins on an equilateral triangle.

(a) Definition of the spin exchange parameters. α J and J , for the Cu isosceles triangles in SrCu(OH)3Cl. Blue and green spheres denote the different Cu atom sites. (b) Energy level diagram of the isosceles triangle (not to scale). In case of α = 1 the two doubly degenerate S = 1 / 2 levels are degenerate.

The main panel shows the magnetization versus field applied along all three crystallographic directions at 1.8 K. The solid bright blue line represents a fit with a Brillouin function for S = 1 / 2 and g = 2.11 . The inset displays the isothermal magnetization curves for various temperatures.

(a) Temperature dependence of the total specific heat at H = 0 . It reveals a λ anomaly at T N = 1.2  K. The red line gives the approximation from its phonon contribution to the heat capacity. (b) Temperature dependence of C m / T , across T N , where C m is the magnetic heat capacity. The right panel displays the magnetic entropy released across the transition.

Magnetic field dependence of the specific heat of SrCu ( OH ) 3 Cl applied along the a -direction. The λ anomaly associated with antiferromagnetic transition is gradually suppressed with increasing magnetic field (see the inset). At higher field an additional broad anomaly appears which shifts to higher temperatures with field.

Specific heat curves of SrCu ( OH ) 3 Cl measured in magnetic fields starting from 3 T. The (red) solid lines are fits with the heat capacity expected for a two-level system including a phonon term as described in detail in the text. The inset displays the level-splitting as a function of the magnetic field.

(a) The H 1 NMR spectrum of SrCu ( OH ) 3 Cl at 3 K exhibits similar line splitting into two peaks as related single-crystalline Cu 2 + hydroxide systems in the paramagnetic state [ 36 ]. (b) The frequency shift of resonance line f 1 , marked by the arrow in (a), follows a similar temperature dependence as the magnetic susceptibility. (c) Temperature-dependent spin-lattice relaxation rate probed by H 1 NMR.

The main panel shows the ESR resonance of SrCu ( OH ) 3 Cl along the three crystal axes at T = 1.8  K. The red lines are fits of the ESR lines using Eq. ( 5 ). (Inset) The fitting of the ESR line recorded at T = 9.5  K along H dc | | c axis using two Lorentzian lines as described in detail in the text.

Temperature dependence of ESR parameters of SrCu ( OH ) 3 Cl . (a) The main panel shows the total intensity of the ESR signal along three different crystallographic directions. (Inset) Comparison of the dc susceptibility measured in a SQUID magnetometer and the ESR intensity. (b) the temperature variation of ESR line width along three directions. The red lines correspond to the fits of the high temperature region using Eq. ( 6 ). (c) The main panel shows the temperature variation of the apparent g -factor obtained from the ESR absorption. (Inset) variation of the dispersion parameter, σ in Eq. ( 5 ) as a function of temperature.

Double logarithmic plot of Δ H and ( T / T N − 1 ) on approaching T N = 1.2 K from T > T N along the three crystallographic directions. T N is obtained from the specific heat measurements at H = 0 . The red lines show the linear fit to the data points. The slopes of the linear fit, which gives the exponent are also mentioned.

Angle dependence of the linewidth in the b − c plane at T = 1.8 and 4.2 K. The red line is the fitting of the data as described in detail in the text.

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