Physical review. E最新文献_第4页

Detectability of hierarchical communities in networks 网络中分层群落的可探测性

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-06 DOI: 10.1103/physreve.110.034306

Leto Peel, Michael T. Schaub

引用次数: 0

Thermodynamics of multicolored loop models in three dimensions 三维多色环模型的热力学

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-06 DOI: 10.1103/physreve.110.034116

Soumya Kanti Ganguly, Sumanta Mukherjee, Chandan Dasgupta

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Shortcut to finite-time memory erasure 有限时间内存擦除快捷方式

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-06 DOI: 10.1103/physreve.110.034115

Geng Li, Hui Dong

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Hele-Shaw flow of a nematic liquid crystal 向列液晶的 Hele-Shaw 流动

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-06 DOI: 10.1103/physreve.110.034702

Joseph R. L. Cousins, Nigel J. Mottram, Stephen K. Wilson

{"title":"Hele-Shaw flow of a nematic liquid crystal","authors":"Joseph R. L. Cousins, Nigel J. Mottram, Stephen K. Wilson","doi":"10.1103/physreve.110.034702","DOIUrl":"https://doi.org/10.1103/physreve.110.034702","url":null,"abstract":"Motivated by the variety of applications in which nematic Hele-Shaw flow occurs, a theoretical model for Hele-Shaw flow of a nematic liquid crystal is formulated and analyzed. We derive the thin-film Ericksen-Leslie equations that govern nematic Hele-Shaw flow, and consider two important limiting cases in which we can make significant analytical progress. First, we consider the leading-order problem in the limiting case in which elasticity effects dominate viscous effects, and find that the nematic liquid crystal anchoring on the plates leads to a fixed director field and an anisotropic patterned viscosity that can be used to guide the flow of the nematic. Second, we consider the leading-order problem in the opposite limiting case in which viscous effects dominate elasticity effects, and find that the flow is identical to that of an isotropic fluid and the behavior of the director is determined by the flow. As an example of the insight which can be gained by using the present approach, we then consider the flow of nematic according to a simple model for the squeezing stage of the one-drop-filling method, an important method for the manufacture of liquid crystal displays, in these two limiting cases.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201043","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

Network compression with configuration models and the minimum description length 使用配置模型和最小描述长度进行网络压缩

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-06 DOI: 10.1103/physreve.110.034305

Laurent Hébert-Dufresne, Jean-Gabriel Young, Alexander Daniels, Alec Kirkley, Antoine Allard

{"title":"Network compression with configuration models and the minimum description length","authors":"Laurent Hébert-Dufresne, Jean-Gabriel Young, Alexander Daniels, Alec Kirkley, Antoine Allard","doi":"10.1103/physreve.110.034305","DOIUrl":"https://doi.org/10.1103/physreve.110.034305","url":null,"abstract":"Random network models, constrained to reproduce specific statistical features, are often used to represent and analyze network data and their mathematical descriptions. Chief among them, the configuration model constrains random networks by their degree distribution and is foundational to many areas of network science. However, configuration models and their variants are often selected based on intuition or mathematical and computational simplicity rather than on statistical evidence. To evaluate the quality of a network representation, we need to consider both the amount of information required to specify a random network model and the probability of recovering the original data when using the model as a generative process. To this end, we calculate the approximate size of network ensembles generated by the popular configuration model and its generalizations, including versions accounting for degree correlations and centrality layers. We then apply the minimum description length principle as a model selection criterion over the resulting nested family of configuration models. Using a dataset of over 100 networks from various domains, we find that the classic configuration model is generally preferred on networks with an average degree above 10, while a layered configuration model constrained by a centrality metric offers the most compact representation of the majority of sparse networks.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201047","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

Laboratory evidence of the nonresonant streaming instability in the formation of quasiparallel collisionless shocks at high Alfvénic Mach number 高阿尔费尼科马赫数下形成准平行无碰撞冲击的非共振流不稳定性的实验室证据

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-05 DOI: 10.1103/physreve.110.l033201

S. Bolaños, M. J.-E. Manuel, M. Bailly-Grandvaux, A. S. Bogale, D. Caprioli, S. R. Klein, D. Michta, P. Tzeferacos, F. N. Beg

引用次数: 0

Quantum migration and its local heat impact: Understanding local heat capacity of confined systems 量子迁移及其对局部热量的影响了解密闭系统的局部热容量

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-05 DOI: 10.1103/physreve.110.034112

Altug Sisman, Jonas Fransson

引用次数: 0

Simulation of the continuous time random walk using subordination schemes 利用从属方案模拟连续时间随机行走

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-05 DOI: 10.1103/physreve.110.034113

Danhua Jiang, Yuanze Hong, Wanli Wang

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Active particle motion in Poiseuille flow through rectangular channels 流经矩形水道的波瓦耶水流中的主动颗粒运动

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-05 DOI: 10.1103/physreve.110.034603

Rahil N. Valani, Brendan Harding, Yvonne M. Stokes

{"title":"Active particle motion in Poiseuille flow through rectangular channels","authors":"Rahil N. Valani, Brendan Harding, Yvonne M. Stokes","doi":"10.1103/physreve.110.034603","DOIUrl":"https://doi.org/10.1103/physreve.110.034603","url":null,"abstract":"We investigate the dynamics of a pointlike active particle suspended in fluid flow through a straight channel. For this particle-fluid system, we derive a constant of motion for a general unidirectional fluid flow and apply it to an approximation of Poiseuille flow through channels with rectangular cross- sections. We obtain a <math xmlns=\"http://www.w3.org/1998/Math/MathML\"><mrow><mn>4</mn><mi mathvariant=\"normal\">D</mi></mrow></math> nonlinear conservative dynamical system with one constant of motion and a dimensionless parameter describing the ratio of maximum flow speed to intrinsic active particle speed. Applied to square channels, we observe a diverse set of active particle trajectories with variations in system parameters and initial conditions which we classify into different types of swinging, trapping, tumbling, and wandering motion. Regular (periodic and quasiperiodic) motion as well as chaotic active particle motion are observed for these trajectories and quantified using largest Lyapunov exponents. We explore the transition to chaotic motion using Poincaré maps and show “sticky” chaotic tumbling trajectories that have long transients near a periodic state. We briefly illustrate how these results extend to rectangular cross-sections with a width-to-height ratio larger than one. Outcomes of this paper may have implications for dynamics of natural and artificial microswimmers in experimental microfluidic channels that typically have rectangular cross sections.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201053","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

Long-time emergent dynamics of liquid films undergoing thermocapillary instability 经历热毛细管不稳定性的液体薄膜的长期突发动力学

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2024-09-05 DOI: 10.1103/physreve.110.035104

Steven A. Kedda, Michael C. Dallaston, Scott W. McCue

{"title":"Long-time emergent dynamics of liquid films undergoing thermocapillary instability","authors":"Steven A. Kedda, Michael C. Dallaston, Scott W. McCue","doi":"10.1103/physreve.110.035104","DOIUrl":"https://doi.org/10.1103/physreve.110.035104","url":null,"abstract":"The study of viscous thin film flow has led to the development of highly nonlinear partial differential equations that model how the evolution of the film height is affected by different forces. We investigate a model of interaction between surface tension and the thermocapillary Marangoni effect, with a particular focus on the long-time limit. In this limit, the model predicts the creation of an infinite cascade of successively smaller satellite droplets near points where the film thickness vanishes. Motivated by recent progress on the analysis of discrete self-similarity in thin film equations, we compute solutions in a space- and time-rescaled coordinate system. Using this rescaled system we observe the dynamics much further in time than has previously been achieved. The observed behavior is close to, but distinct from, previous observations of discretely self-similar thin film flows, in that the rescaled system does not settle down to a periodic solution, but instead has aspects that continue to evolve monotonically in scaled time. This discovery suggests there are as-yet unexplored ways in which discrete self-similarity may be exhibited.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142201088","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