Physical review. E最新文献_第4页

Emergence of Tsallis statistics in Thomas-Fermi theory. 托马斯-费米理论中Tsallis统计的出现。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/gvjq-tcrr

Jean H Y Passos, Anna L F Lucchi, Max Jauregui, Renio S Mendes

{"title":"Emergence of Tsallis statistics in Thomas-Fermi theory.","authors":"Jean H Y Passos, Anna L F Lucchi, Max Jauregui, Renio S Mendes","doi":"10.1103/gvjq-tcrr","DOIUrl":"https://doi.org/10.1103/gvjq-tcrr","url":null,"abstract":"This work establishes a direct connection between semiclassical Thomas-Fermi theory and Tsallis statistics. The kinetic energy term of the Thomas-Fermi framework is shown to be associated with the Tsallis entropy S_{q}, while the particle interactions play the role of internal energy U, allowing the Thomas-Fermi-Lenz functional to be interpreted as a free-energy functional within a generalized thermostatistical setting. Accordingly, the minimization of the energy functional is equivalent to a maximum-entropy principle. The entropic index q is found to depend on spatial dimension: q=(d+2)/d in the nonrelativistic case, q=(d+1)/d in the ultrarelativistic limit, and q=3 under strong magnetic fields. A time-dependent hydrodynamic formulation leads to a nonlinear diffusion equation consistent with a nonlinear Fokker-Planck description. An anomalous diffusion characterized by a universal subdiffusive regime, independent of the spatial dimension, was identified. The time-dependent and time-independent results reveal a correspondence between Thomas-Fermi theory and Tsallis statistics, indicating that the former can be viewed as a generalized thermostatistics; Tsallis statistics is not assumed, it emerges from Thomas-Fermi theory.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 3-1","pages":"034124"},"PeriodicalIF":2.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149207722","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

Force-extension model of cellular membrane extrusion. 细胞膜挤压力扩展模型。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/6ypm-2k66

Fabio Manca, Stefano Giordano

{"title":"Force-extension model of cellular membrane extrusion.","authors":"Fabio Manca, Stefano Giordano","doi":"10.1103/6ypm-2k66","DOIUrl":"https://doi.org/10.1103/6ypm-2k66","url":null,"abstract":"Membrane extrusion experiments offer a powerful framework for investigating cell surface mechanics. However, providing a robust physical interpretation of the observed force-extension curves (FECs) remains a significant challenge. In this work, we introduce a minimal statistical-mechanical model for cellular membrane extrusion that accounts for discrete lipids, adhesion molecules, and the finite-size elasticity of the loading device. Focusing on a peeling geometry to isolate the essential physics of extrusion, we derive exact analytical expressions for the force-extension relations under two loading conditions: isometric (constant extension) and isotensional (constant force). Our results elucidate how lipid-lipid interactions, adhesion energies, and device stiffness govern the emergence of a mechanically induced conformational transition, providing a formal interpretation of the characteristic mechanical signatures reported in membrane-extrusion experiments, including force peaks, plateau regimes, and relaxation patterns. A central outcome of our analysis is that the isometric and isotensional conditions provide qualitatively different FECs of the same membrane system. This finding carries profound physical implications, suggesting that distinct experimental protocols applied to the same membrane may yield different mechanical responses.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 3-1","pages":"034409"},"PeriodicalIF":2.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149207765","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

Impact of ion-electron collisions on nonlocal ion heat conduction, viscous stress, and diffusion. 离子-电子碰撞对非局部离子热传导、粘性应力和扩散的影响。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/yzxz-6j66

Nicholas Mitchell, David Chapman, Grigory Kagan

引用次数: 0

Local elastic perturbation of colloidal suspensions near the colloidal glass transition. 胶态玻璃化转变附近胶态悬浮液的局部弹性扰动。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/pq16-v16h

Piotr Habdas, Rachel E Courtland, Eric R Weeks

引用次数: 0

Growth-driven avalanche behavior in bacterial monolayers. 细菌单层中生长驱动的雪崩行为。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/hgnq-jnm8

Blake Langeslay, Ethan A Mullen, Gabriel Juarez, Karin A Dahmen

引用次数: 0

Origins and predictability of the hydrostatic limit of molecular liquids. 分子液体流体静力极限的起源和可预测性。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/f2k4-hf7d

Cecilia M S Alvares, Cameron J G Wilson, Nicholas P Funnell, Mark S Senn, Gabriele C Sosso

引用次数: 0

Inertial synchronization of networked oscillators in arbitrary dimensions. 任意维网络振荡器的惯性同步。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/fsdp-667s

Kirill Kovalenko, Xiangfeng Dai, Fanshu Fang, Zerong Guo, Haoran Liu, Federico Botta, Charo I Del Genio, Stefano Boccaletti, Simona Olmi

引用次数: 0

State space navigation using geometrically symmetric inflatables. 使用几何对称的充气式状态空间导航。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/4drv-p3b5

Brent Michiels, Elias De Smet, Benjamin Gorissen

{"title":"State space navigation using geometrically symmetric inflatables.","authors":"Brent Michiels, Elias De Smet, Benjamin Gorissen","doi":"10.1103/4drv-p3b5","DOIUrl":"https://doi.org/10.1103/4drv-p3b5","url":null,"abstract":"Soft robots rely on continuous control to achieve complex functionality. Their autonomous behavior is currently limited by a lack of embodied computation and the ability to store information of past events. Inflatable soft actuators typically relax once pressure is removed and, thus, do not exhibit state-space behavior when combined. As a result, rather than embodying memory and logic, inflatable soft robots implement these functions in software. Prior work has shown that mechanical instabilities can endow soft structures with discrete states, yet accessing all possible combinations of states in coupled systems remains challenging and often requires precise geometric tuning of structures. Here we demonstrate that geometric symmetry can be exploited to create truly bistable inflatable actuators with snap-up and snap-down pressures that are equal in magnitude and opposite in sign, enabling permanent memory and fully accessible state spaces using a single pressure input. By gluing two identical conical shell actuators back to back, we obtain nearly point-symmetric pressure-volume characteristics, whose absolute snapping pressures scale directly with material stiffness. As a result, nested pressure-volume curves, where actuators with higher snap-up pressures also have lower snap-down pressures, are achieved simply by varying the shear modulus of the material while keeping the geometry constant. We validate this principle through numerical simulations and experiments and show that three serially connected nested actuators can reliably access all eight global states and function as a pneumatic 1-to-3 demultiplexer. More broadly, this symmetry-based design strategy enables scalable mechanical memory and logic in soft robotic systems, reducing control complexity and opening pathways toward fully embodied pneumatic computation.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"114 3-2","pages":"035508"},"PeriodicalIF":2.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149207194","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

Attraction-induced cluster fragmentation and local alignment in active particle systems. 主动粒子系统中吸引诱导的团簇破碎和局部排列。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/gqf6-nbl4

Sota Shimamura, Nen Saito, Shuji Ishihara

引用次数: 0

Anisotropy can make a moving active fluid membrane rough or crumpled. 各向异性会使移动的主动流体膜变得粗糙或皱巴巴。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2026-09-01 DOI: 10.1103/k2xn-fm52

Debayan Jana, Astik Haldar, Abhik Basu

引用次数: 0