Physical Review E最新文献_第2页

Effect of local topological changes on resistance in spatially embedded disordered networks. 空间嵌入无序网络中局部拓扑变化对电阻的影响。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/kqkn-mymm

Chenxi Wang, Charles Emmett Maher, Katherine A Newhall

{"title":"Effect of local topological changes on resistance in spatially embedded disordered networks.","authors":"Chenxi Wang, Charles Emmett Maher, Katherine A Newhall","doi":"10.1103/kqkn-mymm","DOIUrl":"https://doi.org/10.1103/kqkn-mymm","url":null,"abstract":"Disordered materials occur naturally and also provide a broader design space than ordered or crystalline structures. We investigate a two-dimensional disordered network metamaterial constructed from a Delaunay triangulation of an underlying point cloud. Small perturbations in the point cloud induce discrete topological changes. One such change we identify is a Delaunay flip, in which two neighboring Delaunay triangles that form a convex quadrilateral structure with their common edge being one of the two quadrilateral diagonals exchange this diagonal for the other diagonal. These topological changes can cause substantial jumps in the effective resistance measured diagonally across the network, when the change is located near the source or the sink node. The jumps are explained analytically by showing that the change in effective resistance from edge removal or addition depends on the voltage drop across that edge. However, Delaunay flips have less impact on global resistance measurements and in larger networks. These local topological changes are relevant for finite-sized samples and experimentally measurable properties such as electrical transport. Global characterizations of the network disorder or topology lack the location-specificity of our observed effects on network transport, and thus may be inadequate for predicting certain experimentally measurable transport properties in disordered network metamaterials, highlighting the importance of localized regions in material design.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024305"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Memory-induced active particle ratchets: Mean currents and large deviations. 记忆诱导的主动粒子棘轮：平均电流和大偏差。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/7w8f-5l87

Venkata D Pamulaparthy, Rosemary J Harris

引用次数: 0

Hybrid quantum-classical dynamics with stationary thermal states. 具有固定热态的混合量子经典动力学。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/3vh7-cjcs

Adrián A Budini

引用次数: 0

Dynamic synchronization of driven self-oscillators: Modeling and experiment. 驱动自激器的动态同步：建模与实验。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/61km-kb4j

Zhenwei Xu, Ulrich Kuhl, Nicolas Noiray

{"title":"Dynamic synchronization of driven self-oscillators: Modeling and experiment.","authors":"Zhenwei Xu, Ulrich Kuhl, Nicolas Noiray","doi":"10.1103/61km-kb4j","DOIUrl":"https://doi.org/10.1103/61km-kb4j","url":null,"abstract":"Synchronization of self-sustained oscillators under fixed frequency and amplitude forcing is well understood, but how time-varying forcing mangles phase locking has been much less explored. Theory predicts that slow deterministic modulation of the drive amplitude or frequency can lead to a peculiar synchronization regime characterized by intermittent locking of the oscillation phase beyond the Arnold-tongue boundaries associated with fixed harmonic forcing. We test these predictions in a controllable aeroacoustic self oscillator, i.e., a whistle, that exhibits a robust limit cycle and is subject to external acoustic forcing with programmable frequency and amplitude modulation. Under both slowly varying frequency and amplitude of the forcing, three regimes are observed: (i) strict synchronization, (ii) intermittent synchronization, characterized by alternating phase-locking and brief phase-slip episodes, and (iii) no synchronization, with regular phase slips. Particularly in the strict synchronization regime, the phase of the oscillator will follow an arbitrary, slowly varying drive phase and under amplitude modulation its amplitude fluctuations are strongly suppressed.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024203"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermal pseudotransitions in a frustrated spin-pseudospin sawtooth chain. 受挫自旋-伪自旋锯齿链中的热赝跃迁。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/bn5t-bkjy

Onofre Rojas, Jozef Strečka

{"title":"Thermal pseudotransitions in a frustrated spin-pseudospin sawtooth chain.","authors":"Onofre Rojas, Jozef Strečka","doi":"10.1103/bn5t-bkjy","DOIUrl":"https://doi.org/10.1103/bn5t-bkjy","url":null,"abstract":"We present an exact analysis of a spin-pseudospin sawtooth chain that incorporates three distinct valence states of copper ions and serves as a minimal model for one-dimensional cuprates composed of corner-sharing copper triangles. The model includes magnetic exchange and electrostatic coupling constants both along the base sites and between base and apex sites capturing the competition between spin and charge degrees of freedom. Using the transfer-matrix method, we derive exact expressions for the free energy and obtain an analytical condition defining the pseudocritical line associated with pronounced thermodynamic anomalies. The ground-state analysis reveals, besides an antiferromagnetic phase, three frustrated phases characterized by distinct residual entropies. At finite temperatures, these zero-temperature phase boundaries evolve into narrow entropy ridges signaling pseudotransitions between the corresponding quasiphases. The specific heat and the avoided-crossing scale exhibit sharp but continuous peaks at the pseudocritical temperature, whereas the physical correlation length may be controlled by a different subleading eigenvalue. Local correlation functions uncover a cooperative rearrangement from charge-dominated to magnetically correlated regimes. Our results demonstrate that the sawtooth geometry promotes frustration and short-range coherence leading to pronounced pseudotransition behavior.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024154"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Robustness of surface edge states in the presence of weak, localized disorder. 存在弱的局部无序时表面边缘状态的鲁棒性。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/m3yd-t234

Josselin Garnier, Basant Lal Sharma

{"title":"Robustness of surface edge states in the presence of weak, localized disorder.","authors":"Josselin Garnier, Basant Lal Sharma","doi":"10.1103/m3yd-t234","DOIUrl":"https://doi.org/10.1103/m3yd-t234","url":null,"abstract":"Edge states are expected to allow for robust, nearly lossless transport along surfaces and interfaces in the presence of disorder. Here we show that this expectation can break down when localized random surface perturbation enables coupling between surface waves and bulk modes, even when it is a weak perturbation. We study the transmission of edge states in a conservative, prototypical spring-mass lattice half plane whose boundary is perturbed by finitely many random variations of surface masses or surface springs. We analyze how an incident surface wave is reflected, transmitted, and partially radiated into the bulk. Using a modal expansion on the orthonormal eigenfunctions of the unperturbed system and a multiscale analysis of the resulting random scattering problem, we apply diffusion approximation theory to characterize the statistics of reflectivity, transmissivity, and radiative loss. This approach yields explicit expressions for the moments of these quantities in the regime of weak disorder and large propagation distances. We identify structural and frequency regimes in which radiative losses into the bulk become substantial, reaching 20-80% of the incident energy flux carried by the edge state in the high-frequency range. Our results demonstrate that ballistic edge transport is not guaranteed by the mere existence of an edge mode but depends sensitively on disorder characteristics and unperturbed surface structure. These findings suggest alternative possibilities for engineering surface properties to control wave transport, with implications for phononic, photonic, and electronic systems, including graphene-based structures and nanoscale materials.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024103"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Framework for fluctuating times and counting observables in stochastic excursions. 随机漂移中波动时间和可观测值计数的框架。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/jydr-1853

Guilherme Fiusa, Pedro E Harunari, Abhaya S Hegde, Gabriel T Landi

{"title":"Framework for fluctuating times and counting observables in stochastic excursions.","authors":"Guilherme Fiusa, Pedro E Harunari, Abhaya S Hegde, Gabriel T Landi","doi":"10.1103/jydr-1853","DOIUrl":"https://doi.org/10.1103/jydr-1853","url":null,"abstract":"Many natural systems exhibit dynamics characterized by alternating phases or recurring sets of states. Describing the fluctuations of such systems over stochastic trajectories is necessary across diverse fields, from biological motors to quantum thermal machines. In an accompanying letter, we introduced the notion of stochastic excursions-a framework to analyze out of equilibrium processes via subtrajectories. Through counting observables, this framework captures finite-time fluctuations and trajectory-level behavior, which provides insights into thermodynamical tradeoffs between thermodynamic quantities of interest, such as entropy production and dynamical activity. In this work, we enhance this formalism by providing a suite of technical results on how to efficiently compute excursion-related quantities. Our analytical results provide explicit formulas for general moments of counting variables and excursion duration, as well as their covariance and conditional moments. We show that excursion counting statistics recover full counting statistics results, and uncover a relation between fluctuations of counting observables at the single-excursion level and the steady-state diffusion coefficient (noise). We also discuss a fluctuation theorem for individual excursions and show that it implies a modified thermodynamic uncertainty relation at the excursion level. In addition, we explore how analyzing excursions and using the results developed here can yield insights into three problems of interest: the three-qubit absorption refrigerator, cellular sensing, and birth-and-death processes.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024129"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying influence and information transfer in a modified Vicsek model with nonreciprocal interactions. 非相互作用的改进Vicsek模型中影响和信息传递的量化。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/rf2v-sy5d

Jiahuan Pang, Wendong Wang

{"title":"Quantifying influence and information transfer in a modified Vicsek model with nonreciprocal interactions.","authors":"Jiahuan Pang, Wendong Wang","doi":"10.1103/rf2v-sy5d","DOIUrl":"https://doi.org/10.1103/rf2v-sy5d","url":null,"abstract":"Understanding information transfer among individuals is fundamental to revealing the collective dynamics of complex systems. Information transfer has been quantified using various information-theoretic tools and assigned the concept of influence. However, information-theoretic measures are inherently statistical, not causal, and influence in the context of causal inference implies a causal relation, so equating influence with information transfer creates conceptual confusion and interpretational challenges. Here, we introduce an influence-based Vicsek model with nonreciprocal interactions to distinguish influence from information transfer and examine their relationship. At the pairwise level, for fixed noise strengths, influence and transfer entropy exhibit quasilinear relations; for fixed interaction weights, influence and transfer entropy exhibit nonlinear relations because noise on influencers enhances information transfer, whereas noise on followers suppresses the overall information transfer. At the collective level, we find that both influence and normalized transfer entropy form two-branched relations that clearly identify the transition points across three distinct phase transitions. These transition points reveal a different aspect of the collective dynamics not captured by classical order parameters: phase transitions are associated with changes in the relative importance of influencers' presents or followers' presents on followers' futures. Finally, we use our model to assess partial information decomposition methods and identify two methods most suitable for analyzing our system, one based on pointwise surprisal changes and the other on secret key agreement. Our work is a first step in distinguishing the concept of influence from information transfer in a physical model system, provides a concrete testbed for methods emerging from the growing field of information theory-based causal inference, and offers new insights into the dynamics of complex systems.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024111"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermally activated nonaffine rearrangements in amorphous glass: Emergence of intrinsic length scales. 热激活非仿射重排在非晶玻璃：本征长度尺度的出现。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/mnlq-52g1

Avinash Kumar Jha

{"title":"Thermally activated nonaffine rearrangements in amorphous glass: Emergence of intrinsic length scales.","authors":"Avinash Kumar Jha","doi":"10.1103/mnlq-52g1","DOIUrl":"https://doi.org/10.1103/mnlq-52g1","url":null,"abstract":"We present a systematic study of temperature-driven nonaffine rearrangements in a model amorphous solid across the full thermodynamic range, from a high-temperature liquid through supercooled and subglass regimes into deeply glassy states. By subtracting the best local affine map from the particle displacements, we obtain componentwise nonaffine residuals whose exponential tails yield the characteristic length scales ξ_{NA,x} and ξ_{NA,y}. For comparison, we compute the Van Hove self-distributions G_{x}(u_{x}) and G_{y}(u_{y}) of the total particle displacement and extract the corresponding Van Hove length scale ξ_{VH}. A central result is that ξ_{VH}>ξ_{NA} for all temperatures, densities, and temporal-sampling protocols studied here, and our companion analytical derivation verifies this ordering at the model level. Notably, the particle-level nonaffine field itself reveals distinct dynamical regimes: appreciable nonaffine activity persists below the thermodynamic glass-transition temperature, indicating a mechanically active viscoelastic regime, whereas deep in the glass the field becomes strongly suppressed, signaling a mechanically locked state. The near equality of ξ_{NA,x} and ξ_{NA,y} further shows that the thermally driven nonaffine rearrangements are isotropic. Overall, the present work provides a particle-level framework for quantifying thermal nonaffinity and for distinguishing mechanically active and mechanically locked regimes in amorphous materials.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-2","pages":"025503"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum statistical mechanics: Gauge invariance, operator shifting, hyperdensity functionals, and nonequilibrium sum rules. 量子统计力学：规范不变性、算符移位、高密度泛函和非平衡和规则。

IF 2.5 3区物理与天体物理

Physical Review E Pub Date : 2026-08-01 DOI: 10.1103/8rks-wg7f

Johanna Müller, Matthias Schmidt

{"title":"Quantum statistical mechanics: Gauge invariance, operator shifting, hyperdensity functionals, and nonequilibrium sum rules.","authors":"Johanna Müller, Matthias Schmidt","doi":"10.1103/8rks-wg7f","DOIUrl":"https://doi.org/10.1103/8rks-wg7f","url":null,"abstract":"We provide an extended account of the recent statistical mechanical theory of gauge invariance against operator shifting in quantum many-body systems [J. Müller and M. Schmidt, Phys. Rev. E 114, L022104 (2026)10.1103/dzz3-m28k]. The gauge transformation is enacted by a shifting superoperator that displaces the fundamental position and momentum degrees of freedom. The shifting superoperator constitutes a map between Hilbert space operators, and it features Lie algebra commutator structure. Averages of general observables remain invariant under the shifting both in and out of thermal equilibrium, as well as in ground states. The gauge invariance induces exact sum rules that interconnect global observables and associated locally resolved correlation functions. In particular we describe the resulting one-body force, hyperforce, product, and two-body sum rules. We relate the shifting superoperator to a previously formulated quantum canonical transformation and present the generalization of quantum shifting to multicomponent systems. The gauge theory respects fundamental fermionic and bosonic particle properties, as we demonstrate by proving the compatibility of operator shifting and exchange symmetry. We formulate the quantum version of hyperdensity functional theory to provide formal access to hyperforces as well as to general averaged quantum observables via universal density functionals. For time-dependent situations, we describe quantum dynamical gauge invariance and prove exact dynamical sum rules for nonequilibrium situations, as generated by Hamiltonian time dependence. We argue for the fundamental status of statistical mechanical gauge invariance based on the compliance of the underlying geometry with canonical quantization according to Dirac's correspondence principle. Analogies and differences of the quantum mechanical sum rules with their classical counterparts remain indicative of the respective levels of description.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"114 2-1","pages":"024130"},"PeriodicalIF":2.5,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149018484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0