Physical Review X
@PhysRevX
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@APSPhysics journal publishing exceptional original research papers from all areas of pure, applied, & interdisciplinary physics. #OpenAccess
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A novel theoretical framework unravels how processes in complex systems that occur at different timescales are coupled together at the functional level by sharing information.
Read
@gnicoletti09
@dbusiello1
#openaccess
#PRXcomplex
#PRXjustpublished
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The Jarzynski equality is a fundamental law connecting equilibrium processes with nonequilibrium fluctuations. Experiments, for the first time, test it in the quantum many-body regime.
Read
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#PRX_many_body
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The wave function of fermions always acquires a minus sign when particles trade places. But an experiment shows that fermions confined to a quasi-one-dimensional space seem to circumvent this exchange symmetry.
Read
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#PRXamo
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A new calculation of the entropy of an expanding universe suggests the microscopic building blocks of space and time reside on a sort of cosmic holographic screen.
Read
@KU_Leuven
@kuleuven_fwet
#PRXjustpublished
#openaccess
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In certain magnetic systems, one superposition of quantum eigenstates leads to a particular classical order, demonstrating that quantum-classical connections can be made via not only observables but also quantum states.
Read
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A theory that proves the eigenstate thermalization hypothesis - a cornerstone of nonequilibrium quantum physics - provides a framework for analytical solutions of the long-time dynamics of quantum many-body systems.
Read
#PRXjustpublished
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A framework for describing phase transitions generalizes the usual statistical mechanics approach to include systems that are out of equilibrium, extending such study to a wide range of applications.
Read
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#PRXstatphys
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A new, compact laser-driven particle accelerator achieves electron energies of 5 GeV in just 20 cm—about 40% of the acceleration possible at the kilometer-long Linac Coherent Light Source. Read
#PRXjustpublished
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A new, unified thermodynamic theory reveals an intimate relationship between optimal transport distances and stochastic and quantum thermodynamics in discrete-state systems.
Read
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Researchers have measured short-timescale fluctuations in metastable systems, uncovering information about failed attempts to cross the barriers that define the metastable state.
Read
@PhysicsMagazine
Viewpoint
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A new multiscale approach allows for estimating high-dimensional probability distributions and fast sampling of many-body systems in various domains, from statistical physics to cosmology.
Read
@GiulioBiroli
@LP_ENS_
#PRXjustpublished
#openaccess
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A proposed model unites quantum theory with classical gravity by assuming that states evolve in a probabilistic way, like a game of chance.
Read
@PhysicsMagazine
Viewpoint
#PRXjustpublished
#openaccess
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Models of systems in physics usually start with elementary processes. New work with a neural network shows how models can also be built by observing the system as a whole and deducing the underlying interactions.
Read
@ClaudiaMerger
@SandraNestler
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A numerical investigation has revealed a surprising correspondence between a lattice spin model and a quantum field theory.
Read
@AlexanderWietek
@amlaeuchli
@PhysicsMagazine
Viewpoint
1
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Congratulations to the recipients of the
#statphys28
Early Career Scientist Prize Kyogo Kawaguchi
@kyogok
, Camille Scalliet, and Suraj Shankar
@SurajShankar92
!!!
See &
1
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New theoretical work establishes an analogy between systems that are dynamically frustrated, such as glasses, and thermodynamic systems whose members have conflicting goals, such as predator–prey ecosystems.
Read
@ryohanainatto1
#PRXjustpublished
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A wide class of physical systems could be turned into learning machines, thanks to a new general approach to training them based entirely on physical dynamics combined with a time-reversal operation.
Read
#PRXjustaccepeted
#openaccess
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A new algorithm for fast Monte Carlo simulations of long-range interacting systems provides speedup factors of up to several thousand, thanks to a hierarchical and dynamical organization of the interactions.
Read
#PRXjustpublished
#openaccess
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Identification of a large class of Hamiltonians that are easy to solve on quantum computers but difficult on classical ones provides a possible path to practical quantum advantage in the simulation of quantum systems.
#PRXjustpublished
#PRXqst
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Our first Perspective article is out! Read "Symmetry, Thermodynamics, and Topology in Active Matter" at
#PRXjustpublished
#openaccess
#PRXactivematter
@cris_marchetti_
@FakhriLab
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Modeling the Influence of Data Structure on Learning in Neural Networks: The Hidden Manifold Model
#PRX10Years
#PRXMachineLearning
#PRXNeuralNetworks
@zdeborova
@KrzakalaF
@marc_mezard
@sebastiangoldt
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An exact algorithm to calculate process tensors - compact representations of environmental influences - provides a scaling advantage over previous algorithms and enables tackling problems in open quantum systems that are currently out of reach.
Read
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A novel description of black-hole microstates as quantum superpositions of objects with geometric semiclassical descriptions explains the origin of black-hole entropy.
Read
#PRXjustpublished
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Observation of a time crystal - a periodically driven state that breaks time-translation symmetry - at room temperature bolsters the case for using the state as a near-term robust quantum memory.
Read
#PRXjustpublished
#PRXqst
#openaccess
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A minimal model describes the emergence of traveling and oscillating states, unifying a broad range of multicomponent systems where effective interactions violate Newton’s third law.
Read
#openaccess
#PRXsoft
#PRXjustpublished
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An analysis of relationships between topology, quantum geometry, and optical absorption reveals an upper bound on the energy gap of topological insulators.
Read
#openaccess
#PRXcondmatt
#PRXjustpublished
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A novel technique reveals a high-fidelity local distortion of the atomic lattice in the charge-density-wave state of a cuprate, providing the first direct evidence of electron-lattice coupling in real space.
Read
#PRXjustpublished
#PRXcondmatt
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The recently discovered class of unconventional antiferromagnets called altermagnets has a ferroic order parameter, the magnetic octupole, and the related order breaks time-reversal symmetry.
Read
@NicolaSpaldin
@BhowalSayantika
#PRXjustpublished
1
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Standard descriptions of phase separation in elastic systems fail to explain structural patterns that emerge. A new theory based on nonlocal elasticity successfully does so.
Read
@ZwickerGroup
@mpids
#openaccess
#PRXsoft
#PRXjustpublished
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An algorithm for simulating coupled classical oscillators on a quantum computer offers a new example of quantum advantage, requiring far fewer resources than simulations on a classical computer.
Read
@RobinKothari
@GoogleQuantumAI
1
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Statistical-physics-based reconstruction in compressed sensing
#PRX10Years
#PRXMachineLearning
#PRXNeuralNetworks
@zdeborova
@KrzakalaF
@marc_mezard
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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.
Read
@ad_quanta
@yuval_adiv
@IdoKaminer
@TechnionLive
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The first demonstration of optical coherent feedback in an optomechanical system controls the motion of a mechanical oscillator and cools it by more than 4 orders of magnitude, a prerequisite for quantum applications.
Read
@QTD_Basel
#PRXqst
#openaccess
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A new approach to solving physics problems described by high-dimensional integrals or sums avoids catastrophic issues that arise when doing so with commonly used Monto Carlo techniques. Read
#PRXjustpublished
#openaccess
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Mathematical Formulation of Multilayer Networks
#PRX10Years
#PRXComplex
#Networks2021
@_AlexArenas
@cosnet_bifi
@masonporter
@manlius84
0
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A new theoretical framework for plastic neural networks predicts dynamical regimes where synapses rather than neurons primarily drive the network’s behavior, leading to an alternative candidate mechanism for working memory in the brain.
Read
@d_g_clark
1
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Strongly coupling chiral molecules to circularly polarized light in an optical cavity give their mirror-image forms different energies, suggesting a viable way to differentiate between them.
Read
@UniperugiaNews
@scuolanormale
@NTNUNaturalSci
#PRXamo
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Researchers have demonstrated an unprecedentedly low-frequency superconducting “fluxonium” qubit, which could facilitate experiments that probe macroscopic quantum phenomena.
Read
@PhysicsMagazine
Synopsis
#PRXjustpublished
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APS is delighted to announce the appointment of Denis Bartolo,
@ENSdeLyon
, as the New Lead Editor of PRX.
Threaded below, find five of Dr. Bartolo's recently-published articles.
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A new theory for how neural networks detect phase transitions from data reveals that popular methods rely on changes in probability distributions rather than recognizing prevalent patterns. Read
@julian__arnold
@_Frank_Schaefer
@NCCR_QSIT
@MIT_CSAIL
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In some topological states of matter, a surface-bulk connection called spectral flow underpins many of the material’s unusual properties. A new analysis, however, shows that most 3D topological phases do not actually possess spectral flow.
Read
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A technique for compressing a quantum program into a small number of qubits pushes quantum computing closer to its goal of solving meaningful problems that cannot be solved on classical computers.
Read
@EliChertkov
@QuantinuumQC
#PRXqst
#PRXjustpublished
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Using a soap bubble, researchers have created a laser that could act as a sensitive sensor for environmental parameters including atmospheric pressure.
Read
@PhysicsMagazine
Focus
#PRXjustpublished
#PRXsoftmatter
#openaccess
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Theoretical analysis reveals how monopoles in quantum spin liquids behave at quantum phase transitions and supports a duality that connects unrelated transitions. Read
#PRXjustpublished
#openaccess
1
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A proposed experiment could bring scientists closer to answering the long-standing question of whether gravity is a classical or a quantum phenomenon.
Read
@LamiLudovico
@QuSoftAmsterdam
@qubit_ulm
@PhysicsMagazine
Research News
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Magnetic phases are traditionally ferromagnetic or antiferromagnetic. An analysis of spin symmetries reveals a third phase: altermagnetism, opening new fronts in magnetism and spintronics research. Read
@uni_mainz
@FZU_AVCR
@JairoSinova
@LiborPhysics
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Altermagnetism - a new kind of magnetism covered in
Crucial foundational work on the topic was published in PRX. See &
@PhysicsMagazine
Viewpoint
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A new model of qubit noise that is motivated by neutral atom qubits leads to much higher rates of error correction in tailored error-correcting codes.
Read
@kaavya_sahay
@Junlan_Jin
@JahanClaes
@EPrinceton
@ShrutiPuri11
@Yale_QI
#PRXqst
#PRXjustpublished
1
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A new test for determining whether time-series data is Markovian overcomes limitations of existing techniques and lays a foundation for the simple classification of diverse nonequilibrium systems.
Read
#PRXjustpublished
#openaccess
0
7
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Dynamical evolutions of squeezed states provide an effective means to engineer quantum correlations in tunnel-coupled condensates.
Read
@max_pruefer
@tu_wien
#openaccess
#PRXjustpublished
#PRXqst
0
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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.
Read
#PRXjustpublished
#PRXqst
#openaccess
0
14
53
Periodic driving of a chain of 20 trapped ions realizes a model of quantum spins allowing an experimental demonstration of bound magnon states in the presence of long-range spin interactions.
Read
@iqoqi
@uniinnsbruck
@MCQST_cluster
@MunichQuantum
0
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A formalism for computing nonlinear conductivities in quantum materials extends existing theoretical work to include spatially varying currents and voltage profiles.
Read
#PRXcondmatt
#PRXjustpublished
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A new framework for approximate evaluation, or contraction, of a tensor network greatly expands the range of problems in quantum physics and computer science that may be accurately approximated by tensor network methods.
Read
#PRXjustpublished
#PRXqst
1
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The spin state of molecular qubits can be made more stable by changing the chemical environment in which the qubits sit. Read
#PRXjustpublished
#PRXqst
#openaccess
- Synopsis by
@PhysicsMagazine
0
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Synchronized bursts of light in a system where each atom emits light only to the right and absorbs light only coming from the left show that atoms can synchronize their emission without having to interact symmetrically.
Read
@ChrisLiedl
@PucherSebastian
1
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A new approach to computing optimal nonequilibrium controls applicable to complex systems far from equilibrium, providing a tool for expanded studies into optimized nanotechnology and the evolution of biomolecular systems.
Read
#PRXjustpublished
0
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48
Nonequilibrium activity may provide a surprisingly general way to improve the ability of a system to store and retrieve memory.
Read
@UChiChemistry
@suri_lab
#PRXjustpublished
#openaaccess
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A method for treating lattice dynamics in a magnetic crystal on an equal footing with spin dynamics opens the door to systematic investigations of vibrational modes in a wide variety of magnetic systems.
Read
#PRXcondmatt
#PRXjustpublished
#openaccess
1
9
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A theoretical study of self-assembly finds that hexagon-shaped building blocks can form large structures faster than triangular or square blocks.
Read
@PhysicsMagazine
Synopsis
#openaccess
#PRXjustpublished
#PRXsoftmatter
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Phys. Rev. X 11, 021045 (2021) - “Supervised Learning in Physical Networks: From Machine Learning to Learning Machines” presented at the first plenary session of
#statphys28
0
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Jamming, a concept from condensed-matter physics, provides a possible prognostic tool for cancer.
Read
@PhysicsMagazine
Viewpoint
@UniLeipzig
#PRXjustpublished
#PRXsoftmatter
#PRXbio
#openaccess
0
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Generation of quantum states of light most suitable for robust quantum computing draws on one of the most basic interactions in physics - the interaction between free electrons and photons.
Read
@ad_quanta
@IdoKaminer
@TechnionLive
@gefenbaranes123
1
14
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Two superconducting qubits coupled to an array of resonators are dressed by two photonic clouds. An architecture that could be used for quantum simulation of spin models. Read
#PRXjustpublished
#PRXqst
#openaccess
1
11
45
Researchers have realized a qubit in which the errors mostly involve erasure of the qubit state, potentially leading to simplifying the architecture of fault-tolerant quantum computers.
Read
@PhysicsMagazine
Synopsis
#PRXqst
0
11
46
Phys. Rev. X 13, 021038 (2023) - “Emergence of Geometric Turing Patterns in Complex Networks” presented in the Interdisciplinary and Complex System session at
#statphys28
0
8
46
High-precision measurements of the absolute frequency of a forbidden optical transition in ytterbium sets the stage for a new clock standard and investigations into fundamental physics.
Read
#PRXamo
#PRxjustpublished
#openaccess
0
9
44
An error-correction method for large-scale neutral atom quantum simulators using optical lattices can distinguish correlated particle-hole pairs from uncorrelated holes in the Mott insulator.
Read
@kaistpr
#PRXqst
#PRXjustpublished
#openaccess
0
13
46
Certain motional modes in trapped-ion crystals are hard to cool. A technique to do so indirectly involves transferring motional quanta from these modes to ones that cool more efficiently.
Read
#PRXjustpublished
#openaccess
0
12
46
The fracture properties of elastomers depend on sample thickness because of the surprisingly three-dimensional nature of the fracture process.
Read
@RobStyleSoftMat
@SoftLiv_Cornell
@RongLong8
@RongLong8
@CornellMSE
@CornellPhysics
@CUEngineering
0
9
45
A connection between a subclass of quantum circuits and existing frameworks of statistical mechanics allows one to extract genuine quantum-mechanical properties from the boundary of a classical model.
Read
@KaiKlocke
@BerkeleyPhysics
@UniCologne
#PRXqst
0
11
44
A quantum device shows promise for simulating molecular dynamics in a difficult-to-model photochemical process that is relevant to vision.
Read
@PhysicsMagazine
Synopsis
@_cswang_
@Ben__Chapman
@ShrutiPuri11
@Yale_QI
#PRXqst
0
9
44
A proposed multimode optical cavity capable of realizing a quantum spin glass offers a practicable platform for developing a comprehensive understanding of such systems.
Read
#openaccess
#PRXqst
#PRXjustpublished
0
18
46
Experiments in atomic Fermi superfluids demonstrate fast and on-demand generation of persistent ring currents, opening a new platform for quantum technology applications.
Read
#PRXjustpublished
#PRXamo
#PRXqst
2
15
46
A proposed technique to test for slight differences in symmetry between the mirror-image arrangements of chiral molecules opens the door to probe for tiny parity violations.
Read
@YuvalShagam
@TechnionLive
#PRXamo
PRXjustpublished
#openaccess
0
8
43
A theoretical framework for topological phases provided the first systematic classification of non-Hermitian systems, those that exchange matter and energy with their environment.
Read again
@PhysicsMagazine
Viewpoint
#PRXtbt
0
11
43
A simple scheme to convert amplitude-damping noise in superconducting circuits to easier-to-correct heralded erasure noise overcomes conventional limits on quantum information fidelity.
Read
#PRXjustpublished
#PRXqst
#openaccess
0
7
44
Weyl fermions possess exotic properties and can act like magnetic monopoles. Researchers showed that TaAs is a Weyl semimetal, demonstrating for the first time that Weyl semimetals can be identified experimentally.
Read again
#PRtbt
#PRXcondmatt
1
6
44
Engineered non-Hermiticity, which effectively controls the interaction between a quantum system and a bath along with the bath itself, gives rise to novel quantum phenomena.
Read
#PRXjustpublished
#PRXqst
#openaccess
0
15
44
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.
Read
#PRXjustpublished
#openaccess
0
14
44
Tantalum-based superconducting qubits have shown great promise in extending qubit lifetimes. New systematic measurements identify the key sources of loss and noise in this material system.
Read
#PRXjustpublished
#PRXqst
#openaccess
0
7
43
Symmetry - protected topological phases: quantum states typically defined by some exact symmetry - are also well defined for average symmetries, where disorder locally breaks the symmetry but restores it on average.
Read
#PRXjustpublished
#PRXqst
0
13
42
A new mechanism to enhance the Nernst effect - wherein heat flow in a solid is converted to voltage - via magnetic fluctuations may lead to new applications in energy-harvesting devices.
Read
#openaccess
#PRXcondmatt
#PRXjustpublished
0
11
43
Observations of pressure-driven motion of cells reveal a novel type of cell migration and cooperation between cellular- and tissue-level forces, with implications for cancer cell movement and early organism development. Read
#PRXjustpublished
#openaccess
0
9
41
Non-Abelian frame charges - mathematical entities used to describe certain topological properties - can also help understand band degeneracies in ordinary optical media.
Read
#PRXjustpublished
#PRXphotonics
#openaccess
0
6
39
Single-Shot Quantum Nondemolition Detection of Individual Itinerant Microwave Photons See also the Viewpoint by
@PhysicsMagazine
at
#PRX10Years
#PRXqst
@AndreasAtETH
0
4
42
Rigorous analysis of the finite-size error in quantum chemistry methods for periodic systems toward the thermodynamic limit reveals surprising theoretical properties.
Read
#PRXquantumchemistry
#PRXjustpublished
0
9
40
New Class of Quantum Error-Correcting Codes for a Bosonic Model
#PRX10Years
#PRXquantumtheory
@Yale_QI
0
9
42
A new analytic theory of a monitored 1D free-fermion system shows the absence of a measurement-induced entanglement phase transition conjectured in recent studies.
Read
#PRXjustpublished
#PRXqst
#openaccess
0
7
41
A machine-learning algorithm with a quantum circuit generates realistic handwritten digits and performs better than its classical counterpart. See
#PRXjustpublished
#PRXqst
#openaccess
@QuantumManuel
,
@JohriSonika
,
@aperdomoortiz
@ZapataComputing
@IonQ_Inc
1
6
41
New approach sets the stage for a detailed understanding of the directions & strengths of pairwise and higher-order interactions in fields ranging from neuroscience to finance to ecology.
Read
@FarnikNikakhtar
@YalePhysicsDept
@AkhshiAmin
@KlausLehnertz
1
14
39
Differentiable Programming Tensor Networks
#PRX10Years
#PRXMachineLearning
#PRXNeuralNetworks
@UCAS1978
0
10
41
A novel form of optical nonreciprocal dissipation engineering marks a milestone in the long-standing challenge of building practical on-chip isolators for photonic integrated circuits.
Read
@YishuZhou2
@RakichLab
@Yale_QI
#PRXjustpublished
#openaccess
0
17
41
A new way to compare numerical simulations of gravitational waves with observations removes existing limitations, enabling the study of new astrophysical phenomena.
Read
#PRXjustpublished
#PRXastro
#openaccess
1
8
40
A new approach to constructing quantum spin Hamiltonians in a neutral-atom quantum simulator reveals never-before-seen phenomena in magnon bound states.
Read
#openaccess
#PRXamo
#PRXqst
#PRXjustpublished
@kaistpr
1
9
40
All types of single lenses produce inverted images and must be center-aligned with the object being imaged. A new type of lens circumvents both limitations by shifting light rays rather than bending them
#PRXjustpublished
#PRXmetamaterials
#openaccess
1
12
39
Quantum t-designs - ensembles of states that mimic uniform averaging - for infinite-dimensional spaces do not exist, but an alternative “rigged t-design” is possible.
Read
@IosueJoe
@kunalsharmaq
@victorvalbert
#PRXqst
#PRXjustpublished
#openaccess
0
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