Physical review. E最新文献

Amplitude death and phase-locked oscillations in delay-coupled oscillators with frequency mismatch and nonisochronism. 频率不匹配和非等时延迟耦合振荡器的幅值死亡和锁相振荡。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/5rfb-hyps

Keiji Konishi, Koki Yoshida, Yoshiki Sugitani, Naoyuki Hara

引用次数: 0

Score-based modeling of effective Langevin dynamics. 基于分数的有效朗之万动力学建模。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/6qpv-lqmt

Ludovico Theo Giorgini

{"title":"Score-based modeling of effective Langevin dynamics.","authors":"Ludovico Theo Giorgini","doi":"10.1103/6qpv-lqmt","DOIUrl":"https://doi.org/10.1103/6qpv-lqmt","url":null,"abstract":"We introduce a constructive framework to learn effective Langevin equations from stationary time series. Unlike conventional approaches that require iterative calibration to match target statistics, our construction guarantees the observed steady-state density by design and enforces short-lag coordinate-correlation constraints directly from data-so that the surrogate satisfies the targeted invariant measure and short-lag coordinate-correlation constraints from the outset, without trial-and-error tuning. The drift is parametrized in terms of the score function-the gradient of the logarithm of the steady-state distribution-and a constant mobility matrix whose symmetric part controls dissipation and diffusion and whose antisymmetric part encodes mean nonequilibrium circulation. The score is learned from samples using denoising score matching, while the mobility coefficients are inferred from short-lag correlation identities estimated via a clustering-based finite-volume discretization on a data-adaptive state-space partition. We validate the approach on low-dimensional stochastic benchmarks and on partially observed Kuramoto-Sivashinsky dynamics, where the resulting Markovian surrogate preserves the marginal invariant measure and captures the temporal correlations of the resolved variables. The resulting Langevin models define explicit reduced generators that enable efficient sampling and generation of synthetic trajectories with the imposed statistical and dynamical constraints, without direct simulation of the underlying full dynamics.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 1","pages":"L012102"},"PeriodicalIF":2.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796584","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

From brittle to ductile and back: Reentrant fracture transition in disordered two-phase solids. 从脆性到延性再到韧性：无序两相固体的可回入断裂转变。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/j3f3-r4yp

Subrat Senapati, Anuradha Banerjee, R Rajesh

引用次数: 0

Distance function for stochastic matrices. 随机矩阵的距离函数。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/z34j-grq5

Antony R Lee, Peter Tiňo, Iain B Styles

引用次数: 0

Higher-order adaptive behaviors outperform pairwise strategies in mitigating contagion dynamics. 高阶适应行为在减轻传染动力学方面优于两两策略。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/7zyh-9j1b

Marco Mancastroppa, Márton Karsai, Alain Barrat

{"title":"Higher-order adaptive behaviors outperform pairwise strategies in mitigating contagion dynamics.","authors":"Marco Mancastroppa, Márton Karsai, Alain Barrat","doi":"10.1103/7zyh-9j1b","DOIUrl":"https://doi.org/10.1103/7zyh-9j1b","url":null,"abstract":"When exposed to a contagion phenomenon, individuals may respond to the perceived risk of infection by adopting behavioral changes, aiming to reduce their exposure or their risk of infecting others. The social cost of such adaptive behaviors and their impact on the contagion dynamics have been investigated in pairwise networks, with binary interactions driving both contagion and risk perception. However, contagion and adaptive mechanisms can also be driven by group (higher-order) interactions. Here, we consider several adaptive behaviors triggered by awareness of risk perceived through higher-order and pairwise interactions, and we compare their impact on pairwise and higher-order contagion processes. By numerical simulations and a mean-field analytic approach, we show that adaptive behaviors driven by higher-order information are more effective in limiting the spread of a contagion, than similar mechanisms based on pairwise information. Meanwhile, they also entail a lower social cost, measured as the reduction of the intensity of interactions in the population. Indeed, adaptive mechanisms based on higher-order information lead to a heterogeneous risk perception within the population, producing a higher alert on nodes with large hyperdegree (i.e., participating in many groups), on their neighborhoods, and on large groups. This in turn prevents the spreading process to exploit the properties of these nodes and groups, which tend to drive and sustain the dynamics in the absence of adaptive behaviors.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 1-1","pages":"014302"},"PeriodicalIF":2.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796741","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

Probing eigenstate thermalization in the weakly interacting Holstein polaron model. 探测弱相互作用荷斯坦极化子模型中的本征态热化。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/7qgp-g9kx

K Prashant, A Adhikari, C Sudheesh

{"title":"Probing eigenstate thermalization in the weakly interacting Holstein polaron model.","authors":"K Prashant, A Adhikari, C Sudheesh","doi":"10.1103/7qgp-g9kx","DOIUrl":"https://doi.org/10.1103/7qgp-g9kx","url":null,"abstract":"The origin of chaos in quantum systems remains a central challenge in many-body physics. Here, we use the adiabatic gauge potential (AGP) as a tool to investigate the transition from integrability to chaos in the one-dimensional Holstein polaron model. By combining exact diagonalization with an analysis of eigenstate expectation values (EEVs) and the statistical properties of off-diagonal matrix elements, we provide a detailed characterization of thermalization indicators in this model. In the integrable regime, we observe distributions of EEVs and power-law decays of their outliers with system size, consistent with the breakdown of the eigenstate thermalization hypothesis (ETH). Notably, in the noninteracting limit, standard indicators of quantum chaos, such as the mean level spacing, fail to capture the absence of integrability breaking. As integrability is broken, the off-diagonal matrix elements exhibit Gaussian statistics with variances matching random-matrix predictions, while EEV fluctuations vanish rapidly, signaling the onset of quantum chaos. Our results establish the AGP, with matrix element statistics, as a framework to probe the crossover from integrability to chaos in electron-phonon coupled systems.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 1-1","pages":"014118"},"PeriodicalIF":2.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796792","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

Subexponential growth dynamics in complex systems: A piecewise power-law model for the diffusion of new words and names. 复杂系统中的亚指数增长动力学：新单词和新名称扩散的分段幂律模型。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/f3d5-2tb8

Hayafumi Watanabe

{"title":"Subexponential growth dynamics in complex systems: A piecewise power-law model for the diffusion of new words and names.","authors":"Hayafumi Watanabe","doi":"10.1103/f3d5-2tb8","DOIUrl":"https://doi.org/10.1103/f3d5-2tb8","url":null,"abstract":"The diffusion of ideas and language represents a typical example of collective dynamics in complex systems, conventionally described by S-shaped models such as the logistic function and its generalizations. However, the role of subexponential growth-a slower-than-exponential pattern known in epidemiology-has been largely overlooked in social diffusion processes. Here, we present a piecewise power-law model to characterize complex growth curves with a few parameters. We systematically analyzed a large-scale dataset of approximately one billion Japanese blog articles linked to Wikipedia vocabulary, and observed consistent patterns in web search trend data (English, Spanish, and Japanese). Our analysis of 2963 items, selected for reliable estimation (e.g., sufficient duration/peak, monotonic growth), reveals that 1625 (55%) diffusion patterns without abrupt level shifts were adequately described by one or two segments. For single-segment curves, we found that (i) the mode of the shape parameter α was near 0.5, indicating prevalent subexponential growth; (ii) the peak diffusion scale is primarily determined by the growth rate R, with minor contributions from α or the duration T; and (iii) α showed a tendency to vary with the nature of the topic, being smaller for niche/local topics and larger for widely shared ones. Furthermore, a microbehavioral model of outward (stranger) versus inward (community) contact suggests that α can be interpreted as an index of the preference for outward-oriented communication. These findings suggest that subexponential growth is a common pattern of social diffusion, and our model provides a practical framework for consistently describing, comparing, and interpreting complex and diverse growth curves.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 1-1","pages":"014304"},"PeriodicalIF":2.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796846","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

Role of stall forces and entropic barriers in geometry-dependent polymer translocation. 失速力和熵垒在几何依赖聚合物易位中的作用。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/zqz7-dwdg

Reshmi Nayak, Damien Paul Foster, Sanjay Kumar

{"title":"Role of stall forces and entropic barriers in geometry-dependent polymer translocation.","authors":"Reshmi Nayak, Damien Paul Foster, Sanjay Kumar","doi":"10.1103/zqz7-dwdg","DOIUrl":"https://doi.org/10.1103/zqz7-dwdg","url":null,"abstract":"We investigate the role of stall forces and entropic barriers in geometry-dependent polymer translocation through narrow pores. We consider two distinct geometrical constraints: forced translocation through a small pore in a flat membrane separating two semi-infinite three-dimensional spaces, and translocation from a confined region into an unconfined space, where the confinement is provided by a square-pyramidal geometry in three dimensions. The translocation dynamics is described within a lattice-based framework by mapping the process onto the diffusion of an effective virtual particle governed by a Fokker-Planck equation, with the underlying free-energy landscape obtained from exact enumeration of polymer configurations. This approach enables us to study the effects of external driving forces from entropic resistance arising due to geometry. Under their respective stall forces, translocation is markedly faster through a square pyramidal pore than through a flat membrane, demonstrating that confinement-induced changes in the entropic free-energy barrier can enhance driven polymer transport. Our results reveal the importance of a stall force in controlling polymer translocation, suggesting potential applications in nanopore-based manipulation, filtration, and sequencing technologies.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 1-2","pages":"015419"},"PeriodicalIF":2.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796915","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

Sufficient statistics for parameter inference in the stochastic Van der Pol oscillator model for thermoacoustic instabilities. 热声不稳定性随机范德波振模型参数推断的充分统计量。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/k56x-bf4g

Y Sungtaek Ju

{"title":"Sufficient statistics for parameter inference in the stochastic Van der Pol oscillator model for thermoacoustic instabilities.","authors":"Y Sungtaek Ju","doi":"10.1103/k56x-bf4g","DOIUrl":"https://doi.org/10.1103/k56x-bf4g","url":null,"abstract":"Thermoacoustic instabilities pose a critical challenge in the design and operation of many combustion systems. We report a low-dimensional statistics approach for inferring the parameters of the stochastic Van der Pol oscillator from trajectory observations. From the exponential family structure of the stationary amplitude distribution, we identify sufficient statistics that capture essential parametric information. To break the parameter degeneracy inherent to stationary distribution methods, we incorporate the amplitude autocorrelation time, which provides independent information about noise intensity through relaxation dynamics. The inverse mapping from sufficient statistics to parameters can be effectively approximated by quadratic polynomial regression, achieving comparable accuracy to neural networks while requiring orders of magnitude fewer parameters and providing interpretable closed-form expressions. Comparison with previous parameter identification approaches reveals complementary strengths. In the critical regime near the Hopf bifurcation, our method enables regime classification with reasonable accuracy. Under measurement noise, a periodogram-based moment correction yields graceful degradation across all three parameter estimates, with residual high-noise error dominated by autocorrelation-time bias rather than moment bias. The methodology provides interpretable symbolic expressions suitable for thermoacoustic stability monitoring, and can be extended to other stochastic oscillator systems.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 1-1","pages":"014203"},"PeriodicalIF":2.4,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148796922","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

Spectral statistics and localization properties of a C_{3}-symmetric billiard. C_{3}对称台球的谱统计和局域化性质。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-07-01 DOI: 10.1103/s9jj-p8sy

Matic Orel, Marko Robnik

引用次数: 0