Physical review. E最新文献_第9页

Weighted average temperature as the effective temperature of a system in contact with two thermal baths. 加权平均温度作为与两个热浴池接触的系统的有效温度。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044132

Z C Tu

引用次数: 0

Transient asymmetry during elastic snap-through: The interplay between imperfections and oscillations. 弹性断裂过程中的瞬态不对称：缺陷和振荡之间的相互作用。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.045503

Andrea Giudici, Weicheng Huang, Qiong Wang, Yuzhe Wang, Mingchao Liu, Sameh Tawfick, Dominic Vella

{"title":"Transient asymmetry during elastic snap-through: The interplay between imperfections and oscillations.","authors":"Andrea Giudici, Weicheng Huang, Qiong Wang, Yuzhe Wang, Mingchao Liu, Sameh Tawfick, Dominic Vella","doi":"10.1103/PhysRevE.111.045503","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.045503","url":null,"abstract":"A symmetrically buckled arch whose boundaries are clamped at an angle has two stable equilibria: an inverted and a natural state. When the distance between the clamps is increased (i.e., the confinement is decreased), the system snaps from the inverted to the natural state. Depending on the rate at which the confinement is decreased (\"unloading\"), the symmetry of the system during snap through may change: slow unloading results in snap-through occurring asymmetrically, while fast unloading results in a symmetric snap-through. It has recently been shown [Wang et al., Phys. Rev. Lett. 132, 267201 (2024)0031-900710.1103/PhysRevLett.132.267201] that the transient asymmetry observed at slow unloading rates is the result of the amplification of small asymmetric precursor oscillations (shape perturbations) introduced dynamically to the system, even when the system itself is perfectly symmetric. In reality, however, imperfections, such as small asymmetries in the boundary conditions, are present too. Using numerical simulations and a simple toy model, we discuss the relative importance of imperfections in the boundary conditions and initial asymmetric shape perturbations in determining the transient asymmetry that is observed. We show that for small initial shape perturbations, the magnitude of the asymmetry grows in proportion to the size of the imperfection, but that when initial shape perturbations are large, imperfections are unimportant-the asymmetry of the system is dominated by the transient amplification of the initial asymmetric shape perturbations. We also show that the dominant origin of asymmetry changes the way that asymmetry grows dynamically. Our results may guide the engineering and design of snapping beams used to control insect-sized jumping robots.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"111 4-2","pages":"045503"},"PeriodicalIF":2.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136213","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

Directed transport and collective dynamics of pulsing particles in topological lattices. 拓扑晶格中脉冲粒子的定向输运和集体动力学。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044123

Wei-Jing Zhu, Xiao-Kun Jiang, Jia-Jian Li, Bao-Quan Ai

{"title":"Directed transport and collective dynamics of pulsing particles in topological lattices.","authors":"Wei-Jing Zhu, Xiao-Kun Jiang, Jia-Jian Li, Bao-Quan Ai","doi":"10.1103/PhysRevE.111.044123","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.044123","url":null,"abstract":"We investigated the directed transport and collective patterns of pulsing particles with periodic size variation in topological lattices. Self-pulsing provides energy input at the individual level and serves as nonequilibrium driving. The distribution of the topological lattice determines the direction of particle motion, with pulsing particles preferentially moving toward high-density lattice regions, in contrast to the behavior of conventional active particles. The competition dynamics of repulsion contraction and synchronization give rise to deformation waves in dense particle environments, including both planar and circular waves, corresponding to a disordered state. These deformation waves exhibit local order but global disorder. Notably, directed transport is most pronounced in the disordered state, whereas particles exhibit no directed transport in the arrested ordered state. Additionally, optimal values of the self-pulsing parameters (the driving frequency, the self-pulsation amplitude, and the strengths of synchronization) lead to a peak in the average velocity. The particle number density also significantly influences directed transport, as an increase in number density promotes directed transport.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"111 4-1","pages":"044123"},"PeriodicalIF":2.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136272","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

Strange attractors in complex networks. 复杂网络中的奇异吸引子。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.L042301

Pablo Villegas

引用次数: 0

Beating stripe solitons arising from helicoidal spin-orbit coupling in Bose-Einstein condensates. 玻色-爱因斯坦凝聚体中螺旋自旋-轨道耦合产生的跳动条纹孤子。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044203

Cui-Cui Ding, Qin Zhou, B A Malomed

引用次数: 0

Microbial populations hardly ever grow logistically and never sublinearly. 微生物种群几乎从不按逻辑增长，也从不按次线性增长。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044404

José Camacho-Mateu, Aniello Lampo, Mario Castro, José A Cuesta

引用次数: 0

Filling spherical surfaces by mixed triangle and square tiles. 用混合的三角形和正方形瓷砖填充球面。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.045408

Han Xie, Yao Li, Jeff Z Y Chen

引用次数: 0

Low-resolution descriptions of model neural activity reveal hidden features and underlying system properties. 模型神经活动的低分辨率描述揭示了隐藏的特征和潜在的系统属性。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044315

Riccardo Aldrigo, Roberto Menichetti, Raffaello Potestio

{"title":"Low-resolution descriptions of model neural activity reveal hidden features and underlying system properties.","authors":"Riccardo Aldrigo, Roberto Menichetti, Raffaello Potestio","doi":"10.1103/PhysRevE.111.044315","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.044315","url":null,"abstract":"The analysis of complex systems such as neural networks is made particularly difficult by the overwhelming number of their interacting components. In the absence of prior knowledge, identifying a small but informative subset of network nodes on which the analysis should focus is a rather challenging task. In this work, we address this problem in the context of a Hopfield model, which is observed through the lenses of low-resolution representations, or decimation mappings, consisting of subgroups of its neurons. The optimal, most informative mappings of the network are defined through a recently developed methodology, the mapping entropy optimization workflow (MEOW), which performs an unsupervised analysis of the states sampled by the network and identifies those subgroups of units whose configuration distribution is closest to that of the full, high-resolution model. Which neurons are retained in an optimal mapping is found to critically depend on the properties of the interaction matrix of the network and the level of detail employed to describe the system; by these means, it is thus possible to extract quantitative insight about the underlying properties of the high-resolution model through the analysis of its optimal low-resolution representations. These results show a tight and potentially fruitful relation between the level of detail at which the network is inspected and the type and amount of information that can be gathered from it, and showcase the MEOW approach as a practical, enabling tool for the study of complex systems.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"111 4-1","pages":"044315"},"PeriodicalIF":2.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136361","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

Non-Markovianity and a generalized Landauer bound for a minimal quantum autonomous thermal machine with a work qubit. 具有工作量子比特的最小量子自治热机的非马尔可夫性和广义Landauer界。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.044124

A Khoudiri, A El Allati, Ö E Müstecaplıoğlu, K El Anouz

{"title":"Non-Markovianity and a generalized Landauer bound for a minimal quantum autonomous thermal machine with a work qubit.","authors":"A Khoudiri, A El Allati, Ö E Müstecaplıoğlu, K El Anouz","doi":"10.1103/PhysRevE.111.044124","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.044124","url":null,"abstract":"We investigate the validity of the Landauer principle in the context of a non-Markovian environment, employing a quantum autonomous thermal machine (QATM) comprised of two qubits, attached to different Markovian thermal reservoirs coupled to a single qubit acting as a quantum coherence reservoir, interpreted as a working qubit. We numerically demonstrate that the non-Markovianity, arising from the exchange of correlations between the QATM qubits and the work qubit, influences the Landauer bound. We analyze two distinct reservoir types: fermionic and bosonic, and show that the QATM, operating as a single entity, interacts with the work qubit at an effective virtual temperature, leading to a violation of the conventional Landauer bound. Consequently, we derive a lower bound for the minimal dissipation energy required to erase information during the energy exchange between the QATM and the work qubit. The QATM's information engine character and impact on the work qubit is further characterized by monitoring its information content, including coherence and population dynamics. Our analysis reveals that the work qubit's populations oscillate in time, while the coherence dissipates nonmonotonically.","PeriodicalId":20085,"journal":{"name":"Physical review. E","volume":"111 4-1","pages":"044124"},"PeriodicalIF":2.4,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144136402","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

Microscale structural fluctuations at the melting phase transition of strongly confined achiral and chiral nematics. 强约束手性向列和非手性向列熔体相变的微尺度结构波动。

IF 2.4 3区物理与天体物理

Physical review. E Pub Date : 2025-04-01 DOI: 10.1103/PhysRevE.111.045415

J Pišljar, A Nych, U Ognysta, S Kralj, I Muševič

引用次数: 0