Physical Review X - March 2023

Physical Review X View Email Online   Volume 13, Issue 1 January - March 2023   View Issue   Advertisement PRX Life is Open for Submissions! PRX Life, the first multidisciplinary journal covering all aspects of biological organization, is now open for submissions! Take advantage of Gold Open Access for your publication with zero article publication charges until 2024. Submit your research today! Don't forget to sign up to receive alerts and follow the journal on Twitter.     Advertisement Attend April Meeting 2023 You don't want to miss April Meeting 2023: Quarks to Cosmos! Discover cutting-edge research in astrophysics, particle physics, nuclear physics, and gravitation, network with other physicists to advance your career, and learn about current issues relevant to the physics community. Register today. APS offers a tiered pricing structure for in-person and virtual April Meeting registrations to ensure global price equity for physicists worldwide. Learn more.     Advertisement Discuss canopy elastic turbulence live The Physical Review Journal Club returns April 28 with an exclusive conversation with Charlotte de Blois (École Normale Supérieure de Lyon: Lyon, Rhône-Alpes, France) and colleagues on their recently published Physical Review Fluids paper: "Canopy elastic turbulence: Spontaneous formation of waves in beds of slender microposts." Registration is free and a video recording will be provided to all registrants.     Not an APS member? Join today to start connecting with a community of more than 50,000 physicists.   Ultrafast Melting of Superconductivity in an Iron-Based Superconductor D. Nevola, N. Zaki, J. M. Tranquada, W.-G. Yin, G. D. Gu, Q. Li, and P. D. Johnson Phys. Rev. X 13, 011001 (2023) – Published 5 January 2023 Optical pumping of an "unconventional" iron-chalcogenide superconductor leads to a metastable state in which superconductivity disappears on very fast timescales, possibly due to magnetic correlations triggered by the pumping.     Observation of 2D Cherenkov Radiation Yuval Adiv, Hao Hu, Shai Tsesses, Raphael Dahan, Kangpeng Wang, Yaniv Kurman, Alexey Gorlach, Hongsheng Chen, Xiao Lin, Guy Bartal, and Ido Kaminer Phys. Rev. X 13, 011002 (2023) – Published 6 January 2023 Experiments provide the first observation of Cherenkov radiation emitted into 2D light modes, achieving a unity free-electron–photon coupling strength, paving the way for unexplored phenomena in free-electron quantum optics.     Floquet Simulators for Topological Surface States in Isolation Kun Woo Kim, Dmitry Bagrets, Tobias Micklitz, and Alexander Altland Phys. Rev. X 13, 011003 (2023) – Published 10 January 2023 The exotic surfaces of topological insulators have so far required an accompanying bulk insulator. But dynamical engineering of synthetic spatial dimensions could enable the realization of topological surfaces in isolation.     Precise Control of Entanglement in Multinuclear Spin Registers Coupled to Defects Evangelia Takou, Edwin Barnes, and Sophia E. Economou Phys. Rev. X 13, 011004 (2023) – Published 18 January 2023 An analysis of the electron-nuclear entanglement structure in solid-state defect spins leads to protocols for generating multinuclear entanglement, opening the full potential of nuclear spin memories in quantum networks.     Two-Emitter Multimode Cavity Quantum Electrodynamics in Thin-Film Silicon Carbide Photonics Daniil M. Lukin, Melissa A. Guidry, Joshua Yang, Misagh Ghezellou, Sattwik Deb Mishra, Hiroshi Abe, Takeshi Ohshima, Jawad Ul-Hassan, and Jelena Vučković Phys. Rev. X 13, 011005 (2023) – Published 19 January 2023 The integration of an optically coherent, long-lived spin qubit in a silicon carbide-on-insulator photonics platform showcases the potential of silicon carbide in quantum computing and communications applications.     Featured in Physics Optical Guiding in 50-Meter-Scale Air Waveguides A. Goffin, I. Larkin, A. Tartaro, A. Schweinsberg, A. Valenzuela, E. W. Rosenthal, and H. M. Milchberg Phys. Rev. X 13, 011006 (2023) – Published 23 January 2023 Viewpoint:Air Waveguide from "Donut" Laser Beams A waveguide sculpted in air with lasers transmits light over a distance of nearly 50 meters, which is 60 times farther than previous air-waveguide schemes.     Temperature Dependence of Spin and Charge Orders in the Doped Two-Dimensional Hubbard Model Bo Xiao, Yuan-Yao He, Antoine Georges, and Shiwei Zhang Phys. Rev. X 13, 011007 (2023) – Published 24 January 2023 State-of-the-art numerical techniques suggest that charge order in the 2D Hubbard model sets in at a nonzero temperature, answering a major open question in the physics of this paradigmatic model of quantum materials.     Featured in Physics Observation of Wave-Packet Branching through an Engineered Conical Intersection Christopher S. Wang, Nicholas E. Frattini, Benjamin J. Chapman, Shruti Puri, S. M. Girvin, Michel H. Devoret, and Robert J. Schoelkopf Phys. Rev. X 13, 011008 (2023) – Published 26 January 2023 Synopsis:Quantum Circuit Tackles "Diabolical" Photochemical Process A quantum device shows promise for simulating molecular dynamics in a difficult-to-model photochemical process that is relevant to vision.     Featured in Physics Forgetting Leads to Chaos in Attractor Networks Ulises Pereira-Obilinovic, Johnatan Aljadeff, and Nicolas Brunel Phys. Rev. X 13, 011009 (2023) – Published 27 January 2023 Focus:Memories Become Chaotic before They Are Forgotten A model for information storage in the brain reveals how memories decay with age.     Bipolaronic High-Temperature Superconductivity C. Zhang, J. Sous, D. R. Reichman, M. Berciu, A. J. Millis, N. V. Prokof'ev, and B. V. Svistunov Phys. Rev. X 13, 011010 (2023) – Published 30 January 2023 A proposed route to high-temperature superconductivity by increasing the binding between electron pairs without unduly increasing the pair mass suggests superconductivity at temperatures higher than previously thought possible.     Laser-Driven Neutron Generation Realizing Single-Shot Resonance Spectroscopy A. Yogo, Z. Lan, Y. Arikawa, Y. Abe, S. R. Mirfayzi, T. Wei, T. Mori, D. Golovin, T. Hayakawa, N. Iwata, S. Fujioka, M. Nakai, Y. Sentoku, K. Mima, M. Murakami, M. Koizumi, F. Ito, J. Lee, T. Takahashi, K. Hironaka, S. Kar, H. Nishimura, and R. Kodama Phys. Rev. X 13, 011011 (2023) – Published 31 January 2023 Experiments identify the mechanism that accelerates ions in a laser-driven neutron source (LDNS) as well as a scaling law for the neutron yield, key insights that move LDNS closer to practical neutron generation.     Single- and Multimagnon Dynamics in Antiferromagnetic α−Fe2O3 Thin Films Jiemin Li, Yanhong Gu, Yoshihiro Takahashi, Keisuke Higashi, Taehun Kim, Yang Cheng, Fengyuan Yang, Jan Kuneš, Jonathan Pelliciari, Atsushi Hariki, and Valentina Bisogni Phys. Rev. X 13, 011012 (2023) – Published 1 February 2023 Resonant inelastic x-ray scattering reveals the fundamental magnetic modes in hematite thin films, which are relevant for the development of fast, low-power antiferromagnetic spintronics–based devices.     Thermodynamic Unification of Optimal Transport: Thermodynamic Uncertainty Relation, Minimum Dissipation, and Thermodynamic Speed Limits Tan Van Vu and Keiji Saito Phys. Rev. X 13, 011013 (2023) – Published 3 February 2023 A new, unified thermodynamic theory reveals an intimate relationship between optimal transport distances and stochastic and quantum thermodynamics in discrete-state systems.     Fragmentation and Entanglement Limit Vimentin Intermediate Filament Assembly Quang D. Tran, Valerio Sorichetti, Gerard Pehau-Arnaudet, Martin Lenz, and Cécile Leduc Phys. Rev. X 13, 011014 (2023) – Published 6 February 2023 Experiments and theoretical modeling show that disassembly of vimentin intermediate filaments—a key process in many biological cell functions—proceeds via filament breakage without the assistance of other proteins.     King-Plot Analysis of Isotope Shifts in Simple Diatomic Molecules Michail Athanasakis-Kaklamanakis, Shane G. Wilkins, Alexander A. Breier, and Gerda Neyens Phys. Rev. X 13, 011015 (2023) – Published 9 February 2023 The known linear relationship between nuclear radius, nuclear mass, and isotope shift also holds for diatomic molecules, insight that can help measure the radii of short-lived nuclei that are not currently accessible in single atoms.     Autonomous Quantum Devices: When Are They Realizable without Additional Thermodynamic Costs? Mischa P. Woods and Michał Horodecki Phys. Rev. X 13, 011016 (2023) – Published 13 February 2023 Unaccounted for thermodynamic costs in controlling quantum systems can be made arbitrarily small, as long as the control is not implemented too quickly.     Two-Photon Interface of Nuclear Spins Based on the Optonuclear Quadrupolar Effect Haowei Xu, Changhao Li, Guoqing Wang, Hua Wang, Hao Tang, Ariel Rebekah Barr, Paola Cappellaro, and Ju Li Phys. Rev. X 13, 011017 (2023) – Published 14 February 2023 A proposed mechanism for efficiently coupling optical photons and nuclear spins opens the door to hybridizing these two building blocks of quantum technology and to a number of novel device applications.     Nanoscale Torsional Dissipation Dilution for Quantum Experiments and Precision Measurement J. R. Pratt, A. R. Agrawal, C. A. Condos, C. M. Pluchar, S. Schlamminger, and D. J. Wilson Phys. Rev. X 13, 011018 (2023) – Published 15 February 2023 Experiments show that the torsion modes of nanostructures can experience dissipation dilution, yielding a new class of ultrahigh-Q resonators with broad applications to quantum experiments and precision measurement.     Quantum Feedback at the Solid-Liquid Interface: Flow-Induced Electronic Current and Its Negative Contribution to Friction Baptiste Coquinot, Lydéric Bocquet, and Nikita Kavokine Phys. Rev. X 13, 011019 (2023) – Published 17 February 2023 A new quantum-mechanical theory predicts that a neutral liquid can generate an electric current in the solid wall along which it flows. The current in turn reduces the friction at the liquid-solid interface.     Featured in Physics Strong Electronic Winds Blowing under Liquid Flows on Carbon Surfaces Mathieu Lizée, Alice Marcotte, Baptiste Coquinot, Nikita Kavokine, Karen Sobnath, Clément Barraud, Ankit Bhardwaj, Boya Radha, Antoine Niguès, Lydéric Bocquet, and Alessandro Siria Phys. Rev. X 13, 011020 (2023) – Published 17 February 2023 Focus:Secret of Flow-Induced Electric Currents Revealed Vibrations are the main drivers of a mysterious process in which a liquid flow generates an electric current in the solid below it.     Electronic Character of Charge Order in Square-Planar Low-Valence Nickelates Y. Shen, J. Sears, G. Fabbris, J. Li, J. Pelliciari, M. Mitrano, W. He, Junjie Zhang, J. F. Mitchell, V. Bisogni, M. R. Norman, S. Johnston, and M. P. M. Dean Phys. Rev. X 13, 011021 (2023) – Published 21 February 2023 Resonant inelastic x-ray scattering reveals the presence and character of charge order in a low-valence nickelate, a step toward understanding this newly found family of superconductors.     Field-Induced Tuning of the Pairing State in a Superconductor A. Rosuel, C. Marcenat, G. Knebel, T. Klein, A. Pourret, N. Marquardt, Q. Niu, S. Rousseau, A. Demuer, G. Seyfarth, G. Lapertot, D. Aoki, D. Braithwaite, J. Flouquet, and J. P. Brison Phys. Rev. X 13, 011022 (2023) – Published 22 February 2023 A magnetic field tunes UTe2 between two superconducting pairing mechanisms, possibly driving a change from a spin-triplet state to a spin-singlet state. This enables explorations of how exotic spin-triplet superconductivity emerges.     Featured in Physics Fast High-Fidelity Single-Shot Readout of Spins in Silicon Using a Single-Electron Box G. A. Oakes, V. N. Ciriano-Tejel, D. F. Wise, M. A. Fogarty, T. Lundberg, C. Lainé, S. Schaal, F. Martins, D. J. Ibberson, L. Hutin, B. Bertrand, N. Stelmashenko, J. W. A. Robinson, L. Ibberson, A. Hashim, I. Siddiqi, A. Lee, M. Vinet, C. G. Smith, J. J. L. Morton, and M. F. Gonzalez-Zalba Phys. Rev. X 13, 011023 (2023) – Published 23 February 2023 Synopsis:Improved Readout of Spin Qubits A newly developed compact charge sensor quickly reads the state of electron spin qubits with high fidelity, demonstrating a performance suitable for robust, spin-based quantum processors.     Featured in Physics Capillary-Stress Controlled Rheometer Reveals the Dual Rheology of Shear-Thickening Suspensions Bruno Etcheverry, Yoël Forterre, and Bloen Metzger Phys. Rev. X 13, 011024 (2023) – Published 24 February 2023 Synopsis:A New Rheometer for Particle Suspensions The "capillarytron" lets researchers access mechanical properties of very dense suspensions.     Featured in Physics Salt Polygons and Porous Media Convection Jana Lasser, Joanna M. Nield, Marcel Ernst, Volker Karius, Giles F. S. Wiggs, Matthew R. Threadgold, Cédric Beaume, and Lucas Goehring Phys. Rev. X 13, 011025 (2023) – Published 24 February 2023 Focus:Why Death Valley Is Full of Polygons The geometric patterns on dry, salty lake beds are generated by convection of high- and low-salinity water underground, according to simulations and observations.     Multilayered Atomic Relaxation in van der Waals Heterostructures Dorri Halbertal, Lennart Klebl, Valerie Hsieh, Jacob Cook, Stephen Carr, Guang Bian, Cory R. Dean, Dante M. Kennes, and D. N. Basov Phys. Rev. X 13, 011026 (2023) – Published 27 February 2023 In stacked van der Waals materials, atomic relaxation in the 2D layers can propagate throughout the stack, altering even the electronic properties of the entire heterostructure.     Transverse Peierls Transition Kaifa Luo and Xi Dai Phys. Rev. X 13, 011027 (2023) – Published 28 February 2023 When electrons couple to transverse phonons in topological semimetals, two novel spontaneous symmetry-breaking quantum phases can emerge.     Interference Measurements of Non-Abelian e/4 & Abelian e/2 Quasiparticle Braiding R. L. Willett, K. Shtengel, C. Nayak, L. N. Pfeiffer, Y. J. Chung, M. L. Peabody, K. W. Baldwin, and K. W. West Phys. Rev. X 13, 011028 (2023) – Published 1 March 2023 A novel GaAs interferometer provides experimental evidence that strengthens the case for non-Abelian anyons, hypothetical quasiparticles highly sought for use in topologically protected quantum computing.     Quantum Dynamics of Attractive and Repulsive Polarons in a Doped MoSe2 Monolayer Di Huang, Kevin Sampson, Yue Ni, Zhida Liu, Danfu Liang, Kenji Watanabe, Takashi Taniguchi, Hebin Li, Eric Martin, Jesper Levinsen, Meera M. Parish, Emanuel Tutuc, Dmitry K. Efimkin, and Xiaoqin Li Phys. Rev. X 13, 011029 (2023) – Published 2 March 2023 Experiments reveal previously unknown quantum dynamics of quasiparticles called attractive and repulsive polarons in an ultrathin semiconductor.     Cross-Correlation Investigation of Anyon Statistics in the ν=1/3 and 2/5 Fractional Quantum Hall States P. Glidic, O. Maillet, A. Aassime, C. Piquard, A. Cavanna, U. Gennser, Y. Jin, A. Anthore, and F. Pierre Phys. Rev. X 13, 011030 (2023) – Published 3 March 2023 To date, only two methods have provided convincing signs of exotic anyon quasiparticles. A reexamination of one method extends it to other types of anyons and establishes how much information the technique can provide.     Comparing Fractional Quantum Hall Laughlin and Jain Topological Orders with the Anyon Collider M. Ruelle, E. Frigerio, J.-M. Berroir, B. Plaçais, J. Rech, A. Cavanna, U. Gennser, Y. Jin, and G. Fève Phys. Rev. X 13, 011031 (2023) – Published 3 March 2023 An anyon collider can distinguish between two types of anyons associated with two fractional quantum Hall states of a 2D electron gas, a step toward further investigation of anyons deemed useful for quantum computing.     Enhanced Superconducting Pairing Strength near a Pure Nematic Quantum Critical Point Kiyotaka Mukasa, Kousuke Ishida, Shusaku Imajo, Mingwei Qiu, Mikihiko Saito, Kohei Matsuura, Yuichi Sugimura, Supeng Liu, Yu Uezono, Takumi Otsuka, Matija Čulo, Shigeru Kasahara, Yuji Matsuda, Nigel E. Hussey, Takao Watanabe, Koichi Kindo, and Takasada Shibauchi Phys. Rev. X 13, 011032 (2023) – Published 6 March 2023 Nonmagnetic nematic interactions in one iron-based superconductor can increase the strength of Cooper pairs in the material, demonstrating a fundamentally new way to enhance superconductivity.     Superdiffusive Energy Transport in Kinetically Constrained Models Marko Ljubotina, Jean-Yves Desaules, Maksym Serbyn, and Zlatko Papić Phys. Rev. X 13, 011033 (2023) – Published 7 March 2023 Kinetic constraints in many-body quantum systems can give rise to an intriguingly fast "superdffusive" transport of energy, suggesting a new class of transport behaviors whose origin remains to be understood.     Noninvertible Chiral Symmetry and Exponential Hierarchies Clay Córdova and Kantaro Ohmori Phys. Rev. X 13, 011034 (2023) – Published 8 March 2023 A new class of chiral symmetries in models of massless quantum electrodynamics and axions could help explain the large ratios found among properties, such as mass, of elementary particles.     Large Topological Hall Effect and Spiral Magnetic Order in the Weyl Semimetal SmAlSi Xiaohan Yao, Jonathan Gaudet, Rahul Verma, David E. Graf, Hung-Yu Yang, Faranak Bahrami, Ruiqi Zhang, Adam A. Aczel, Sujan Subedi, Darius H. Torchinsky, Jianwei Sun, Arun Bansil, Shin-Ming Huang, Bahadur Singh, Peter Blaha, Predrag Nikolić, and Fazel Tafti Phys. Rev. X 13, 011035 (2023) – Published 9 March 2023 The first demonstration of spiral magnetic order in a Weyl semimetal sets the stage for finding other materials with these structures, which could be used for high-density magnetic information storage.     Featured in Physics Appropriate Mechanical Confinement Inhibits Multipolar Cell Division via Pole-Cortex Interaction Longcan Cheng, Jingchen Li, Houbo Sun, and Hongyuan Jiang Phys. Rev. X 13, 011036 (2023) – Published 10 March 2023 Focus:Four Walls Good, Two Walls Bad for Confined Cells Segregation of chromosomes in dividing cells can be disrupted if the cells are constrained by their surroundings.     Paramagnetic LaCoO3: A Highly Inhomogeneous Mixed Spin-State System D. Takegami, A. Tanaka, S. Agrestini, Z. Hu, J. Weinen, M. Rotter, C. Schüßler-Langeheine, T. Willers, T. C. Koethe, T. Lorenz, Y. F. Liao, K. D. Tsuei, H.-J. Lin, C. T. Chen, and L. H. Tjeng Phys. Rev. X 13, 011037 (2023) – Published 13 March 2023 Experiments show that lattice relaxations play a role in the gradual spin-state and insulator-to-metal transitions of LaCoO3. The findings call for a reconsideration of the transition energetics in this and related materials.     Featured in Physics Disordered Heterogeneous Universe: Galaxy Distribution and Clustering across Length Scales Oliver H. E. Philcox and Salvatore Torquato Phys. Rev. X 13, 011038 (2023) – Published 14 March 2023 :The Cosmos as a Colloid A new methodology for analyzing the 3D distribution of galaxies borrows techniques from the study of colloids and other disordered materials.     Solving 2D and 3D Lattice Models of Correlated Fermions—Combining Matrix Product States with Mean-Field Theory Gunnar Bollmark, Thomas Köhler, Lorenzo Pizzino, Yiqi Yang, Johannes S. Hofmann, Hao Shi, Shiwei Zhang, Thierry Giamarchi, and Adrian Kantian Phys. Rev. X 13, 011039 (2023) – Published 15 March 2023 A new numerical theory provides a framework that can guide the search for high-temperature superconductivity in quasi-1D systems.     Dissipative Solitons and Switching Waves in Dispersion-Modulated Kerr Cavities Miles H. Anderson, Alexey Tikan, Aleksandr Tusnin, Johann Riemensberger, Alisa Davydova, Rui Ning Wang, and Tobias J. Kippenberg Phys. Rev. X 13, 011040 (2023) – Published 16 March 2023 Varying the width of a waveguide around the circumference of a microresonator provides a way to significantly extend the bandwidth of a type of laser comb without reducing the material dispersion.     Thermalization of Dilute Impurities in One-Dimensional Spin Chains Dries Sels and Anatoli Polkovnikov Phys. Rev. X 13, 011041 (2023) – Published 17 March 2023 Strongly disordered interacting systems remember their initial conditions for very long times. But a popular explanation invoking emergent local integrals of motion appears to be unstable in interacting models.     Optically Coherent Nitrogen-Vacancy Defect Centers in Diamond Nanostructures Laura Orphal-Kobin, Kilian Unterguggenberger, Tommaso Pregnolato, Natalia Kemf, Mathias Matalla, Ralph-Stephan Unger, Ina Ostermay, Gregor Pieplow, and Tim Schröder Phys. Rev. X 13, 011042 (2023) – Published 20 March 2023 An analysis and improvement of the spectral properties of nitrogen-vacancy defects in diamond nanostructures paves the way for efficient entanglement generation necessary for many quantum information applications.     Universal Out-of-Equilibrium Dynamics of 1D Critical Quantum Systems Perturbed by Noise Coupled to Energy Alexios Christopoulos, Pierre Le Doussal, Denis Bernard, and Andrea De Luca Phys. Rev. X 13, 011043 (2023) – Published 22 March 2023 Averaging many noise realizations is a tried-and-true way to study how out-of-equilibrium quantum systems interact with their environment. But if one has access to individual realizations, new and surprising behavior can emerge.     Time-Resolved Chiral X-Ray Photoelectron Spectroscopy with Transiently Enhanced Atomic Site Selectivity: A Free-Electron Laser Investigation of Electronically Excited Fenchone Enantiomers D. Faccialà et al. Phys. Rev. X 13, 011044 (2023) – Published 23 March 2023 A soft x-ray probe reveals the contribution of specific atoms in the compound fenchone to the molecule's overall chirality following photoexcitation, paving the way for broader studies of chirality during ultrafast reactions.     Coherent Fluctuations in Noisy Mesoscopic Systems, the Open Quantum SSEP, and Free Probability Ludwig Hruza and Denis Bernard Phys. Rev. X 13, 011045 (2023) – Published 24 March 2023 Fluctuations of quantum mechanical coherences in small, nonequilibrium systems can be described by a universal mathematical framework that draws from free probability theory, a tool that may aid understanding of noisy many-body quantum systems.     Featured in Physics Direct Observation of Quantum Anomalous Vortex in Fe(Se,Te) Y. S. Lin, S. Y. Wang, X. Zhang, Y. Feng, Y. P. Pan, H. Ru, J. J. Zhu, B. K. Xiang, K. Liu, C. L. Zheng, L. Y. Wei, M. X. Wang, Z. K. Liu, L. Chen, K. Jiang, Y. F. Guo, Ziqiang Wang, and Y. H. Wang Phys. Rev. X 13, 011046 (2023) – Published 27 March 2023 Viewpoint:Superconducting Vortices Made Without Magnetic Fields A quantum phase of matter detected in an iron-based superconductor could host Majorana zero modes—quasiparticles that may serve as building blocks for future quantum computers.     Featured in Physics Terahertz Vibrational Molecular Clock with Systematic Uncertainty at the 10−14 Level K. H. Leung, B. Iritani, E. Tiberi, I. Majewska, M. Borkowski, R. Moszynski, and T. Zelevinsky Phys. Rev. X 13, 011047 (2023) – Published 28 March 2023 :New Accuracy Record for Molecular Lattice Clock Researchers have attained a 100-fold increase in the accuracy of a molecular clock that could serve as a terahertz-frequency standard and as a platform for investigating new physics.     Population of Merging Compact Binaries Inferred Using Gravitational Waves through GWTC-3 R. Abbott et al. (LIGO Scientific Collaboration, Virgo Collaboration, and KAGRA Collaboration) Phys. Rev. X 13, 011048 (2023) – Published 29 March 2023 An analysis of gravitational waves from 76 compact binary mergers provides new constraints on the population properties of neutron stars and black holes, as well as on their formation and evolution pathways.     Measuring Arbitrary Physical Properties in Analog Quantum Simulation Minh C. Tran, Daniel K. Mark, Wen Wei Ho, and Soonwon Choi Phys. Rev. X 13, 011049 (2023) – Published 30 March 2023 A new protocol for measuring the state of a quantum simulator allows for the extraction of arbitrary physical information by relying on ancillary degrees of freedom and the natural randomness of quantum dynamics.     Laboratory Constraints on the Neutron-Spin Coupling of feV-Scale Axions Junyi Lee, Mariangela Lisanti, William A. Terrano, and Michael Romalis Phys. Rev. X 13, 011050 (2023) – Published 31 March 2023 A new analysis methodology of K-3He comagnetometer data provides vastly improved constraints on axion neutron-spin coupling, shrinking the parameter search space for this proposed constituent of dark matter.       American Physical Society: 1 Physics Ellipse, College Park, MD 20740 ©2023 American Physical Society | All rights reserved   You are receiving this email because you are subscribed to Table of Content alerts. If you no longer wish to receive these emails, please update your preferences.