Browse Issues:

Editorial: Physical Review X at Fifteen

Denis Bartolo and Brent Grocholski

Phys. Rev. X 16, 030001 (2026) - Published 1 July, 2026

Editorial: Closing Special Collection on 2D Materials

Liuyan Zhao and Xavier Marie

Phys. Rev. X 16, 030002 (2026) - Published 3 August, 2026

Vast World of Quantum Advantage

Hsin-Yuan Huang, Soonwon Choi, Jarrod R. McClean, and John Preskill

Phys. Rev. X 16, 030501 (2026) - Published 9 July, 2026

Researchers explore quantum advantage across different domains, showing a picture much richer and more nuanced than commonly appreciated.

Universal Fault-Tolerant Quantum Computation in 2D without Getting Tied in Knots

Margarita Davydova, Andreas Bauer, Julio C. Magdalena de la Fuente, Mark Webster, Dominic J. Williamson, and Benjamin J. Brown

Phys. Rev. X 16, 031001 (2026) - Published 7 July, 2026

Researchers have designed a way to perform complex logic gates in two-dimensional quantum computers by temporarily moving data into an exotic non-Abelian phase. This method provides a path toward large-scale, fault-tolerant quantum computation.

Agentic Exploration of Physics Models

Maximilian Nägele and Florian Marquardt

Phys. Rev. X 16, 031002 (2026) - Published 8 July, 2026

ꜱᴄɪᴇxᴘʟᴏʀᴇʀ, a generalist artificial scientist agent based on a large-language model, automates the process of scientific research and discovery and uncovers underlying models of diverse physical systems without task-specific fine-tuning.

Electric-Field Control of Interlayer Binding and Friction in h-BN Contacts

Penghua Ying, Michael Urbakh, and Oded Hod

Phys. Rev. X 16, 031003 (2026) - Published 10 July, 2026

External electric fields can be used to control sliding resistance in layered materials, providing a way to control friction in some systems.

Autonomous Stabilization of Remote Entanglement in a Cascaded Quantum Network

Abdullah Irfan, Kaushik Singirikonda, Mingxing Yao, Andrew Lingenfelter, Michael Mollenhauer, Xi Cao, Aashish A. Clerk, and Wolfgang Pfaff

Phys. Rev. X 16, 031004 (2026) - Published 13 July, 2026

Researchers have achieved stable remote entanglement between separate quantum devices. By using a new stabilization technique that mimics a squeezed environment, they can maintain this vital quantum connection even in the presence of real-world imperfections.

Distributing Stationary Qubit Entanglement through a Nonlocal Squeezed Reservoir

A. Andrés-Juanes, J. Agustí, R. Sett, E. S. Redchenko, L. N. Kapoor, S. Hawaldar, P. Rabl, and J. M. Fink

Phys. Rev. X 16, 031005 (2026) - Published 13 July, 2026

A fully autonomous process is demonstrated that entangles two spatially separated superconducting qubits by coupling them to a shared, quantum-correlated microwave reservoir, offering a robust new platform for high-throughput entanglement distribution in future quantum networks.

Topological Defect Propagation to Classify Knitted Fabrics

Daisuke S. Shimamoto, Keiko Shimamoto, Sonia Mahmoudi, and Samuel Poincloux

Phys. Rev. X 16, 031006 (2026) - Published 14 July, 2026

The ability of a fabric to be knitted into a textile can be determined on the basis of the topology of its pattern.

Covariant Path Integrals for Quantum Fields Backreacting on Classical Space-Time

Jonathan Oppenheim and Zachary Weller-Davies

Phys. Rev. X 16, 031007 (2026) - Published 15 July, 2026

Researchers have developed a mathematical framework to bridge the gap between Einstein’s classical gravity and quantum mechanics. Their theory allows matter to remain quantum while space-time stays classical, offering a way to test if space and time truly require a quantum explanation.

Electronic Structure of Compressively Strained Bilayer Nickelate Thin Film

Bai Yang Wang, Sebastien N. Abadi, Yidi Liu, Yu Zhang, Yong Zhong, Yijun Yu, Berit H. Goodge, Xiaoliang Zhang, Yi-Ming Wu, Ruohan Wang, Jiarui Li, Yaoju Tarn, Eun Kyo Ko, Vivek Thampy, Chun Lin, Makoto Hashimoto, Donghui Lu, Young S. Lee, Thomas P. Devereaux, Chunjing Jia, Harold Y. Hwang, and Zhi-Xun Shen

Phys. Rev. X 16, 031008 (2026) - Published 15 July, 2026

Angle-resolved photoemission spectroscopy of bilayer nickelate thin films reveals that the out-of-plane nickel orbital band shifts with strain and doping but is not required at the Fermi level for superconductivity.

Candidate for a Fractional Topological Insulator in Twisted MoTe2

Yiping Wang, Gillian E. Minarik, Weijie Li, Yves Kwan, Shuai Yuan, Eric Anderson, Chaowei Hu, Julian Ingham, Jeongheon Choe, Takashi Taniguchi, Kenji Watanabe, Xavier Roy, Jiun-Haw Chu, Raquel Queiroz, James C. Hone, N. Regnault, Xiaodong Xu, and Xiaoyang Zhu

Phys. Rev. X 16, 031009 (2026) - Published 16 July, 2026

Pump-probe modulation spectroscopy of a MoTe2 bilayer superlattice reveals an out-of-plane antiferromagnetic response, providing experimental signatures of a putative fractional topological insulator state.

Floquet-Based Ising Machines Escape Local Minima in QUBO Problems

Nicolas Casilli, Seunghwi Kim, Sunil Mittal, Marvin Onabajo, Andrea Alù, and Cristian Cassella

Phys. Rev. X 16, 031010 (2026) - Published 17 July, 2026

The analog Floquet solver incorporates Floquet amplitude modulations to help it escape local minima, significantly improving the accuracy of parametric oscillator-based Ising machines in solving optimization problems.

Engineered Molecular Clock Transitions for Precision Measurements

Yuiki Takahashi, Harish D. Ramachandran, Arian Jadbabaie, Yi Zeng, Chi Zhang, and Nicholas R. Hutzler

Phys. Rev. X 16, 031011 (2026) - Published 20 July, 2026

Special clock transitions in heavy polar molecules have been engineered to probe physics beyond the standard model, suppressing disruptive electromagnetic noise by orders of magnitude while preserving high sensitivity.

Identifying Geometric Third-Order Nonlinear Transport in Disordered Materials

Zhen-Hao Gong, Zhi-Hao Wei, Hai-Zhou Lu, and X. C. Xie

Phys. Rev. X 16, 031012 (2026) - Published 21 July, 2026

A theoretical data-analysis tool resolves the chaotic interpretation of nonlinear electronic transport data, providing a structured method to extract quantum geometric properties from realistic materials.

Waves Maintain Large-Scale 2D Flows in Rotating Turbulence and Cause Their Demise

Sébastien Gomé and Anna Frishman

Phys. Rev. X 16, 031013 (2026) - Published 21 July, 2026

A first-principles approach helps explain energy transfer from 3D wave excitation to 2D structures in rotating turbulent flow.

Statistical Physics of Deep Learning: Optimal Learning of a Multilayer Perceptron near Interpolation

Jean Barbier, Francesco Camilli, Minh-Toan Nguyen, Mauro Pastore, and Rudy Skerk

Phys. Rev. X 16, 031014 (2026) - Published 22 July, 2026

Using statistical physics and random matrix theory, researchers derive the generalization error of a deep fully connected neural network and uncover the mechanisms governing its behavior as feature learning progressively propagates across layers.

Limits of Inference in Complex Systems: When Stochastic Models Become Indistinguishable

Javier Aguilar, Miguel A. Muñoz, and Sandro Azaele

Phys. Rev. X 16, 031015 (2026) - Published 23 July, 2026

A path-inference framework quantifies data resolution limits that render distinct stochastic models empirically indistinguishable and offers guidelines for designing experimental measurements that maximize information extraction.

Three-Dimensional Electronic Structures in Superconducting Ruddlesden-Popper Bilayer Nickelate Films

Yueying Li, Lizhi Xu, Wei Lv, Zihao Nie, Zechao Wang, Yu Miao, Jianchang Shen, Guangdi Zhou, Wenhua Song, Heng Wang, Haoliang Huang, Junfeng He, Jin-Feng Jia, Peng Li, Qi-Kun Xue, and Zhuoyu Chen

Phys. Rev. X 16, 031016 (2026) - Published 24 July, 2026

Angle-resolved photoemission spectroscopy of superconducting bilayer nickelate thin films reveals an intrinsic three-dimensional electronic structure and a strong-coupling pairing regime on the dz2 orbital band.

Interaction-Driven Topological Transitions in Monolayer TaIrTe4

Jiangxu Li, Jian Tang, Cheng Xu, Louis Primeau, Thomas Siyuan Ding, Rahul Soni, Tiema Qian, Kenji Watanabe, Takashi Taniguchi, Ni Ni, Adrian Del Maestro, Qiong Ma, and Yang Zhang

Phys. Rev. X 16, 031017 (2026) - Published 24 July, 2026

Theoretical and experimental mapping of monolayer TaIrTe4 reveals a rich landscape of interaction-driven topological phases on a single naturally layered crystal—no moiré engineering required.

Long-Lived Mechanically Detected Molecular Spins for Quantum Sensing

Sahand Tabatabaei, Pritam Priyadarsi, Daniel Tay, Namanish Singh, Pardis Sahafi, Andrew Jordan, and Raffi Budakian

Phys. Rev. X 16, 031018 (2026) - Published 27 July, 2026

Researchers integrate molecular spins with mechanical readout to detect nanotesla magnetic fields and resolve local nuclear spectra.

Leading and Beyond Leading-Order Spectral Form Factor in Chaotic Quantum Many-Body Systems Across All Dyson Symmetry Classes

Vijay Kumar, Tomaž Prosen, and Dibyendu Roy

Phys. Rev. X 16, 031019 (2026) - Published 27 July, 2026

Researchers analytically calculate the spectral form factor up to second order in time for chaotic many-body systems across all Dyson symmetry classes.

Non-Hermitian Bethe-Salpeter Equation for Open Systems: Emergence of Exceptional Points in Excitonic Spectra from First Principles

Zhenlin Zhang, Wei Hu, Enrico Perfetto, and Gianluca Stefanucci

Phys. Rev. X 16, 031020 (2026) - Published 28 July, 2026

Extension of the Bethe-Salpeter equation to open quantum systems predicts that engineered photonic environments induce exceptional points in the excitonic spectra of transition-metal dichalcogenides, providing a pathway for non-Hermitian quantum devices with controllable optical and valleytronic properties.

Predicting Liquid Properties and Behavior via Droplet Pinch-off and Machine Learning

Jingtao Wang, Qiwei Chen, C. Ricardo Constante-Amores, Denise Gorse, Alfonso Arturo Castrejón-Pita, and José Rafael Castrejón-Pita

Phys. Rev. X 16, 031021 (2026) - Published 29 July, 2026

A powerful method allows hard to measure properties like viscosity and surface tension to be determined from a single, high-speed snapshot.

Deceleration of Accelerator-Produced and In-Trap Electron Cooling of Highly Charged Ions

S. Rausch, Z. Andelkovic, S. Fedotova, W. Geithner, F. Herfurth, M. Horst, J. Ködel, K. Mohr, D. Neidherr, W. Nörtershäuser, N. Stallkamp, S. Trotsenko, G. Vorobjev, and D. Zisis

Phys. Rev. X 16, 031022 (2026) - Published 29 July, 2026

The electron cooling of highly charged ions (HCI) in a Penning trap, as well as the deceleration and trapping of accelerator-produced HCI, has been demonstrated at the HITRAP facility, paving the way for unprecedented precision experiments in QED, materials science, and astrophysics.

Path-Dependency and Emergent Computing under Vectorial Driving

C. M. Meulblok, A. Singh, M. Labousse, and M. van Hecke

Phys. Rev. X 16, 031023 (2026) - Published 30 July, 2026

A general framework unravels path dependencies across a wide range of driven complex materials.

Unlocking Emergent Resilience in Amorphous Metamaterials via a Physics-Constrained Energy-Based Framework

Lingyu Jia, Changliang Zhu, Qiaozhi Lei, Hua Tong, Jinkui Meng, Chengyan Xu, Xiangying Shen, and Lei Xu

Phys. Rev. X 16, 031024 (2026) - Published 31 July, 2026

A physics-constrained design framework may aid the search for lightweight but resilient material.

High-Dimensional Dynamics in Low-Dimensional Networks

Yue Wan and Robert Rosenbaum

Phys. Rev. X 16, 031025 (2026) - Published 3 August, 2026

The relationship between the dimensionality of a network’s structure and its dynamics is investigated, showing that networks with low-dimensional structures can produce either high- or low-dimensional responses.

Riemannian Geometric Classification and Emergent Phenomena of Magnetic Textures

Koki Shinada and Naoto Nagaosa

Phys. Rev. X 16, 031026 (2026) - Published 4 August, 2026

A classification framework based on differential geometry introduces geodesic and torsional scalar spin chiralities, revealing a quantum geometric effect that modifies electron equations of motion in complex magnetic textures.

Free Probability in a Minimal Quantum Circuit Model

Felix Fritzsch and Pieter W. Claeys

Phys. Rev. X 16, 031027 (2026) - Published 5 August, 2026

Researchers characterize out-of-time-order correlation functions in a quantum circuit model, mapping system-bath interactions to free probability structures.

Quantum Geometric Tensor Determines the Pure-State I.I.D. Conversion Rate in the Resource Theory of Asymmetry for Any Compact Lie Group

Koji Yamaguchi, Yosuke Mitsuhashi, Tomohiro Shitara, and Hiroyasu Tajima

Phys. Rev. X 16, 031028 (2026) - Published 5 August, 2026

Researchers prove that the quantum geometric tensor completely dictates pure-state asymptotic conversion rates under any compact Lie group symmetry.

Mechanochemical Nano-Writing of an Atomically Thin Metal

Shuai Zhang, Yanyu Jia, Atanu Samanta, Yutian Bao, Haosen Guan, Zhaoyi Joy Zheng, Guangming Cheng, Ting Liu, Cangyu Qu, Kenji Watanabe, Takashi Taniguchi, Nan Yao, Ashlie Martini, Leslie Schoop, Andrew M. Rappe, Sanfeng Wu, and Robert W. Carpick

Phys. Rev. X 16, 031029 (2026) - Published 6 August, 2026

A large stress generated by a small tip drives a reaction between two materials in an 2D encapsulated space to produce a new material with interesting electronic properties that can be written into patterns as small as 50 nm.

Infinite Temperature at Zero Energy

Matteo Ippoliti and David M. Long

Phys. Rev. X 16, 031030 (2026) - Published 7 August, 2026

Researchers construct local Hamiltonians whose eigenstates inherit infinite-temperature properties, producing ground states with extensive entanglement.

Observation of Correlated Plasmons in Low-Valence Nickelates

Y. Shen, W. He, J. Sears, Xuefei Guo, Xiangpeng Luo, A. Roll, J. Li, J. Pelliciari, Xi He, I. Božovič, Junjie Zhang, J. F. Mitchell, V. Bisogni, M. Mitrano, S. Johnston, and M. P. M. Dean

Phys. Rev. X 16, 031031 (2026) - Published 7 August, 2026

Resonant inelastic x-ray scattering measurements reveal propagating plasmons in the low-valence nickelate Pr4Ni3O8 with dynamics distinct from those of cuprate superconductors.

Fast Algorithm for 2D Rigidity Percolation

Nina Javerzat and Daniele Notarmuzi

Phys. Rev. X 16, 031032 (2026) - Published 10 August, 2026

An algorithm for simulating the rigidity percolation transition, based on novel theoretical results, overcomes previous size limitations and enables the highly precise characterization of its universality classes, shedding new light on rigidity transitions in amorphous systems.

Strain-Tunable Anomalous Hall Effect in Hexagonal MnTe

Zhaoyu Liu, Sijie Xu, Jonathan M. DeStefano, Elliott Rosenberg, Tingjun Zhang, Jinyulin Li, Matthew B. Stone, Feng Ye, Wei Tian, Sarah Edwards, Rong Cong, Siyu Pan, Ching-Wu Chu, Liangzi Deng, Emilia Morosan, Rafael M. Fernandes, Jiun-Haw Chu, and Pengcheng Dai

Phys. Rev. X 16, 031033 (2026) - Published 11 August, 2026

Uniaxial strain applied to the hexagonal altermagnet α-MnTe isolates a single magnetic domain, revealing a sharp anomalous Hall effect and a sign reversal driven by modifications to the electronic Berry curvature.

Pseudogap, Fermi Liquid, Van Hove Singularity, and Maxima of the Compressibility and of the Knight Shift as a Function of Doping in the Two-Dimensional Hubbard Model

Y. M. Vilk and A.-M. S. Tremblay

Phys. Rev. X 16, 031034 (2026) - Published 11 August, 2026

Analysis of Hubbard model simulations reveals that a maximum in the isothermal compressibility marks the pseudogap boundary, driven by spin-density-wave precursor bands crossing the zero-frequency level.

Unraveling Non-polymorphic Phase Evolution in Mg-Ag-Sb for Designing Thermally Recoverable Thermoelectrics

Shizhen Zhi, Xiaojing Ma, Shanghao Chen, Tianyu Zhang, Yao Xu, Jiang Chen, Sheng Ye, Chenhao Lin, Linmao Wen, Jinxuan Cheng, Rongpei Shi, Xingjun Liu, Feng Cao, Lijun Zhang, Yuhao Fu, Qian Zhang, and Jun Mao

Phys. Rev. X 16, 031035 (2026) - Published 12 August, 2026

Thermal degradation in MgAgSb thermoelectric material can be reversed with low-temperature annealing.

Evolution of Polycrystallinity in Homogeneously Nucleated Colloidal Crystals

Merin Jose, Nicholas H. P. Orr, Taiki Yanagishima, and Roel P. A. Dullens

Phys. Rev. X 16, 031036 (2026) - Published 12 August, 2026

Direct observations of the birth and growth of polycrystalline colloidal crystals clarify the role of grain formation, a key aspect in understanding and tuning the properties of polycrystalline materials.

Bounded-Error Quantum Simulation via Hamiltonian and Lindbladian Learning

Tristan Kraft, Manoj K. Joshi, William T. Lam, Tobias Olsacher, Florian Kranzl, Johannes Franke, Lata Kh Joshi, Rainer Blatt, Augusto Smerzi, Daniel Stilck França, Benoît Vermersch, Barbara Kraus, Christian F. Roos, and Peter Zoller

Phys. Rev. X 16, 031037 (2026) - Published 13 August, 2026

Researchers introduce a framework that infers quantum dynamics and error bounds from experimental data to validate large-scale quantum simulations.

Unified Symmetry Classification of Magnetic Orders via Spin Space Groups: Prediction of Coplanar Even-Wave Phases

Ziyin Song, Ziyue Qi, Chen Fang, Zhong Fang, and Hongming Weng

Phys. Rev. X 16, 031038 (2026) - Published 13 August, 2026

A unified classification framework based on spin space group symmetry predicts a coplanar even-wave magnetic phase where electronic band spin polarization varies continuously and can vanish without band degeneracy.

Standard Model of Electromagnetism and Chirality in Crystals

R. Winkler and U. Zülicke

Phys. Rev. X 16, 031039 (2026) - Published 17 August, 2026

A comprehensive symmetry-based classification identifies 12 fundamentally distinct types of crystal structures across five polar and five chiral categories, providing a complete taxonomy to predict and engineer next-generation multifunctional materials.

Coulomb Screening of Superconductivity in Magic-Angle Graphene

Julien Barrier, Liangtao Peng, Shuigang Xu, Christophe De Beule, V. I. Fal’ko, K. Watanabe, T. Tanigushi, A. K. Geim, Shaffique Adam, and Alexey I. Berdyugin

Phys. Rev. X 16, 031040 (2026) - Published 17 August, 2026

Metallic layers placed near magic-angle graphene suppress Coulomb interactions and reveal that its superconductivity is driven by electronic interactions rather than conventional atomic vibrations.

Bulklike Costless Domain Walls Driven by Phonon Pair Condensation in HfO2

Hyun-Jae Lee, Pawan Kumar, Kyoung-June Go, Chang Hoon Kim, Yungyeom Kim, Kyoungjun Lee, Takao Shimizu, Seung Chul Chae, Hosub Jin, Minseong Lee, Umesh Waghmare, Si-Young Choi, and Jun Hee Lee

Phys. Rev. X 16, 031041 (2026) - Published 18 August, 2026

A previously unrecognized governing principle helps to explain the stable electrical properties in some ferroelectric materials like hafnium oxide.

Eigenstate Thermalization in Thermal First-Order Phase Transitions

Maksym Serbyn, Alexander Avdoshkin, Oriana K. Diessel, and David A. Huse

Phys. Rev. X 16, 031042 (2026) - Published 18 August, 2026

Researchers demonstrate that thermal first-order phase transitions require a generalization of the eigenstate thermalization hypothesis, leading to the coexistence of distinct eigenstate classes and Schrödinger-cat-like states.

Robustness of Real-Space Topology in Moiré Systems

Kryštof Kolář, Kang Yang, Felix von Oppen, and Christophe Mora

Phys. Rev. X 16, 031043 (2026) - Published 19 August, 2026

Topological analysis of real-space electronic textures in nonidealized moiré systems establishes a robust band index and maps wave functions onto a texturally derived fictitious magnetic field.

Ab Initio Auxiliary-Field Quantum Monte Carlo in the Thermodynamic Limit

Jinghong Zhang, Meng-Fu Chen, Adam Rettig, Tong Jiang, Paul J. Robinson, Hieu Q. Dinh, Anton Z. Ni, and Joonho Lee

Phys. Rev. X 16, 031044 (2026) - Published 19 August, 2026

A low-scaling auxiliary-field quantum Monte Carlo method enables accurate simulations of real quantum materials, bridging the gap between benchmark many-body models and complex solid-state systems.

Revealing Electron-Ytterbium Interactions through Rydberg Molecular Spectroscopy

Tangi Legrand, Xin Wang, Florian Pausewang, Wolfgang Alt, Eduardo Uruñuela, Sebastian Hofferberth, Milena Simić, and Matthew T. Eiles

Phys. Rev. X 16, 031045 (2026) - Published 20 August, 2026

Precision spectroscopy of giant ytterbium Rydberg molecules provides a powerful new window into fundamental atomic properties, laying essential groundwork for future experiments with divalent atoms.

Phonon-Activated Collective Hopping in a Superionic Phase

Hung-Min Lin, Mayanak K. Gupta, Niuchang Ouyang, Tyler Wilson, Artem Pogodin, Md Towhidur Rahman, Alexandra Zevalkink, J. Ross Stewart, Fanni Juranyi, Tao Hong, Yan Wu, Songxue Chi, Douglas L. Abernathy, and Olivier Delaire

Phys. Rev. X 16, 031046 (2026) - Published 21 August, 2026

Observations of collective hopping in superionic agryodites improves the microscopic understanding of transport in these materials.

Generation of Large Coherent-State Superpositions in Free-Space Optical Pulses

Lucas Caron, Hector Simon, Hugo Basset, Romaric Journet, and Rosa Tualle-Brouri

Phys. Rev. X 16, 031047 (2026) - Published 21 August, 2026

Researchers generate large-amplitude optical cat states in free space, establishing a vital building block for fault-tolerant quantum computing.

Particle View of Many-Body Electronic Structure with Neural Network Wave Function

Zichen Wang, Weizhong Fu, Zhe Li, Weiluo Ren, and Ji Chen

Phys. Rev. X 16, 031048 (2026) - Published 24 August, 2026

A combination of theoretical approaches bridges the gap between complex quantum wave functions and the classical picture of electron positions for molecules and solids.

Real-Space Visualization of the Intrinsic Aging in n-type Mg3(Sb,Bi)2 Thermoelectrics

Yuxiang Gong, Nuo Qu, Sumayya, Yu-Ke Zhu, Jianbo Zhu, Tinglu Song, Qianru Lin, Lankun Wang, Ran Xin, Fengkai Guo, Wei Cai, Yuan Yu, Jiehe Sui, and Zihang Liu

Phys. Rev. X 16, 031049 (2026) - Published 24 August, 2026

Spontaneous degradation of an Mg3(Sb,Bi)2 thermoelectric demonstrates intrinsic defect relaxations rather than external stimuli can govern long-timescale property evolution.

Semidefinite Block-Matrix Relaxations for Computing Quantum Correlations

Nicola D’Alessandro, Carles Roch i Carceller, and Armin Tavakoli

Phys. Rev. X 16, 031050 (2026) - Published 25 August, 2026

Researchers provide a computational method for bounding the correlations arising in a multitude of quantum information problems.

Demonstrating Coherent Quantum Routers for Bucket-Brigade Quantum Random Access Memory on a Superconducting Processor

Sheng Zhang, Yun-Jie Wang, Peng Wang, Ren-Ze Zhao, Xiao-Yan Yang, Ze-An Zhao, Tian-Le Wang, Hai-Feng Zhang, Zhi-Fei Li, Yuan Wu, Hao-Ran Tao, Liang-Liang Guo, Lei Du, Chi Zhang, Zhi-Long Jia, Wei-Cheng Kong, Zhuo-Zhi Zhang, Xiang-Xiang Song, Yu-Chun Wu, Zhao-Yun Chen, Peng Duan, and Guo-Ping Guo

Phys. Rev. X 16, 031051 (2026) - Published 25 August, 2026

Researchers demonstrate coherent quantum routers on a superconducting processor to realize resilient routing for quantum memories.

Experimentally Accessible Measurement of Irreversibility in Stochastic Systems by Categorizing Single-Molecule Displacements

Alvaro Lanza, Inés Martínez-Martín, Rafael Tapia-Rojo, and Stefano Bo

Phys. Rev. X 16, 031052 (2026) - Published 26 August, 2026

A model-free method that infers irreversibility directly from single-molecule position recordings offers a versatile and accessible tool to characterize the nonequilibrium behavior of small, time-dependent, continuous systems.

Quantum Thermal State Preparation for Near-Term Quantum Processors

Jerome Lloyd and Dmitry A. Abanin

Phys. Rev. X 16, 031053 (2026) - Published 28 August, 2026

Researchers develop an algorithm that prepares many-body quantum thermal states accurately by combining bath resetting and modulated coupling.

Observing the Spatial and Temporal Evolution of Exciton Wave Functions in Organic Semiconductors

Marcel Theilen, Siegfried Kaidisch, Monja Stettner, Sarah Zajusch, Eric Fackelman, Alexa Adamkiewicz, Robert Wallauer, Andreas Windischbacher, Christian S. Kern, Michael G. Ramsey, François C. Bocquet, Serguei Soubatch, F. Stefan Tautz, Ulrich Höfer, and Peter Puschnig

Phys. Rev. X 16, 031054 (2026) - Published 28 August, 2026

Femtosecond time-resolved photoemission orbital tomography tracks photoelectron profiles to reconstruct the real-space distribution and internal quantum phase of excitons in an organic semiconductor.

Flux-Floquet Instability in Fluctuating Superconductors

Marios H. Michael, Duilio De Santis, Eugene A. Demler, and Patrick A. Lee

Phys. Rev. X 16, 031055 (2026) - Published 31 August, 2026

Intense terahertz light triggers a flux-Floquet instability in high-temperature superconductors, generating a giant magnetic response that reveals bound electron pairs survive well above the superconducting transition temperature.

Low-Depth Quantum Symmetrization

Zhenning Liu, Andrew M. Childs, and Daniel Gottesman

Phys. Rev. X 16, 031056 (2026) - Published 31 August, 2026

Researchers develop low-depth quantum symmetrization algorithms that enable efficient bosonic simulations, low-depth Dicke state preparation, and multiphoton interferometric imaging.

Entanglement Certification Using Noncontextuality Inequalities

Yujie Zhang, Jonah Spodek, David Schmid, Carter Reid, Liam J. Morrison, Thomas Jennewein, Kevin J. Resch, and Robert W. Spekkens

Phys. Rev. X 16, 031057 (2026) - Published 1 September, 2026

Researchers demonstrate a gauge-independent entanglement certification method based on noncontextuality inequalities that detects entangled states without requiring prior measurement device characterization.

Production and Decay Dynamics of the Charmed Baryon Λc+ in e+e Annihilations near Threshold

M. Ablikim et al. (BESIII Collaboration)

Phys. Rev. X 16, 031058 (2026) - Published 4 September, 2026

Researchers observe the transverse polarization of the charmed baryon Λc+ in electron-positron annihilations using the BESIII detector.

Removing Nodal and Support-Mismatch Pathologies in Variational Monte Carlo via Blurred Sampling

Zhou-Quan Wan, Roeland Wiersema, and Shiwei Zhang

Phys. Rev. X 16, 031059 (2026) - Published 2 September, 2026

A Monte Carlo postprocessing method called blurred sampling eliminates infinite variance and systematic bias in variational quantum many-body simulations.

Ultrastrong Unconventional Spin Current via Noncollinear Spin-Orbit Filtering

Hongliang Chen, Zi-An Wang, Xingguo Gao, Hang Zhou, Jiaxin Chen, Chang Pan, Lizhu Ren, Qia Shen, Zhenyi Zheng, Dandan Guan, Xiaoxue Liu, Shiyong Wang, Yaoyi Li, Hao Zheng, Canhua Liu, Yumeng Yang, Xuepeng Qiu, Guowei Zhou, Jingsheng Chen, Jinfeng Jia, Ding-Fu Shao, and Liang Liu

Phys. Rev. X 16, 031060 (2026) - Published 3 September, 2026

An asymmetric platinum interface enables noncollinear spin-orbit filtering, breaking bulk symmetry constraints to generate out-of-plane spin currents for field-free magnetization switching.

Topological Flowscape Reveals State Transitions in Nonreciprocal Living Matter

Hyunseok Lee, EliseAnne Koskelo, Shreyas Gokhale, Junang Li, Chenyi Fei, Chih-Wei Joshua Liu, Lisa Lin, Jörn Dunkel, Dominic J. Skinner, and Nikta Fakhri

Phys. Rev. X 16, 031061 (2026) - Published 8 September, 2026

Characterizing living systems far from the thermodynamic limit can yield insight into the physics of nonreciprocity and biological self-organization.

General Quantum Circuit Framework for Extended Wigner’s Friend Scenarios: Logically and Causally Consistent Reasoning without Absolute Measurement Events

V. Vilasini and Mischa P. Woods

Phys. Rev. X 16, 031062 (2026) - Published 9 September, 2026

Researchers develop a quantum circuit framework for extended Wigner’s friend scenarios, resolving logical paradoxes by tracking Heisenberg cuts.

Quantum Birthmarks: Ergodicity Breaking Beyond Scarring

Anton M. Graf, Saul Atwood, Mingxuan Xiao, Roland Ketzmerick, Eric J. Heller, and Joonas Keski-Rahkonen

Phys. Rev. X 16, 031063 (2026) - Published 10 September, 2026

Researchers develop a theoretical framework showing that quantum systems permanently retain a memory of their initial state and early dynamics, in defiance of classical expectations.

Effective Ionic Valence and Local Magnetic Moment in Kagome Superconductors

Ruoshi Jiang, Zi-Jian Lang, Yuzki Oey, Andrea Capa Salinas, Stephen D. Wilson, Yongwei Li, Ilya Shipulin, Yiwen Zhang, Deng Hu, Zhiwei Wang, Hans-Henning Klauss, Zurab Guguchia, Vadim Grinenko, and Wei Ku

Phys. Rev. X 16, 031064 (2026) - Published 10 September, 2026

Revealing concealed ionic local moments in kagome superconductors reflects strong local correlations.

Geometrically Frustrated Quadrupoles on the Pyrochlore Lattice and Generalized Spin Liquids

Kristian Tyn Kai Chung, Sylvain Petit, Julien Robert, and Paul McClarty

Phys. Rev. X 16, 031065 (2026) - Published 11 September, 2026

A semiclassical framework models quantum quadrupoles as biaxial tensors, showing how angular-momentum-dependent geometries dictate generalized nematic phases and quadrupolar spin liquids in frustrated magnets.

Emergent Altermagnetism at Surfaces of Antiferromagnets: Full Symmetry Classification and Material Identification

Colin Lange, Rodrigo Jaeschke-Ubiergo, Atasi Chakraborty, Xanthe H. Verbeek, Libor Šmejkal, Jairo Sinova, and Alexander Mook

Phys. Rev. X 16, 031066 (2026) - Published 11 September, 2026

A theoretical surface spin-group framework demonstrates that surface symmetry breaking in conventional antiferromagnets naturally induces two-dimensional altermagnetism across more than 150 candidate materials.

Reversibility, Chaos, and Attractors in Periodically Sheared Elastic Filaments

Francesco Bonacci, Brato Chakrabarti, Olivia du Roure, Anke Lindner, and David Saintillan

Phys. Rev. X 16, 031067 (2026) - Published 14 September, 2026

Combining experiments on actin filaments with numerical simulations, a previously unknown transition from reversible motion to intermittent, noise-driven chaos in single semiflexible filaments under periodic shear is unveiled.

Overcoming Intrinsic Material Limitations through Cavity Feedback

M. Ebrahimi, Y. Huang, V. A. S. V. Bittencourt, A. Rashedi, A. Metelmann, and J. P. Davis

Phys. Rev. X 16, 031068 (2026) - Published 14 September, 2026

Active dissipation control via a feedback loop overcomes intrinsic magnetic losses, achieving strong coupling among photons, magnons, and phonons in cavity magnomechanics.

Pomeranchuk Instability Induced by an Emergent Higher-Order Van Hove Singularity on the Distorted Kagome Surface of Co3Sn2S2

Pranab Kumar Nag, Rajib Batabyal, Julian Ingham, Noam Morali, Hengxin Tan, Jahyun Koo, Jean Souza, Moshe Haim, Armando Consiglio, Enke Liu, Raquel Queiroz, Ronny Thomale, Binghai Yan, Claudia Felser, Nurit Avraham, and Haim Beidenkopf

Phys. Rev. X 16, 031069 (2026) - Published 15 September, 2026

Surface deformation of the kagome lattice in Co3Sn2S2 flattens saddle points into a higher-order Van Hove singularity, triggering a d-wave Pomeranchuk instability and nematic states.

Exact Nematic and Mixed Magnetic Phases Driven by Competing Orders on the Pyrochlore Lattice

Niccolò Francini, Lukas Schmidt, Lukas Janssen, and Daniel Lozano-Gómez

Phys. Rev. X 16, 031070 (2026) - Published 16 September, 2026

Analysis of a frustrated pyrochlore spin model demonstrates that thermal fluctuations and parameter-dependent symmetries suppress conventional order to stabilize a magnetic nematic phase.

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