Physical Review E最新文献_第5页

Solving the kinetic Ising model with nonreciprocity. 求解非互易的动力学Ising模型。

IF 2.2 3区物理与天体物理

Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024107

Gabriel Artur Weiderpass, Mayur Sharma, Savdeep Sethi

{"title":"Solving the kinetic Ising model with nonreciprocity.","authors":"Gabriel Artur Weiderpass, Mayur Sharma, Savdeep Sethi","doi":"10.1103/PhysRevE.111.024107","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.024107","url":null,"abstract":"Nonreciprocal interactions are a generic feature of nonequilibrium systems. We define a nonreciprocal generalization of the kinetic Ising model in one spatial dimension. We solve the model exactly using two different approaches for infinite, semi-infinite, and finite systems with either periodic or open boundary conditions. The exact solution allows us to explore a range of novel phenomena tied to nonreciprocity like nonreciprocity induced frustration and wave phenomena with interesting parity-dependence for finite systems of size N. We study dynamical questions like the approach to equilibrium with various boundary conditions. We find different regimes, separated by Nth-order exceptional points, which can be classified as overdamped, underdamped, or critically damped phases. Despite these different regimes, long-time order is only present at zero temperature. Additionally, we explore the low-energy behavior of the system in various limits, including the aging and spatiotemporal Porod regimes, demonstrating that nonreciprocity induces unique scaling behavior at zero temperature. Lastly, we present general results for systems where spins interact with no more than two spins, outlining the conditions under which long-time order may exist.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-1","pages":"024107"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659268","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

Reduced ionic effects and enhanced spontaneous polarization in a ferroelectric liquid crystal device employing a two-dimensional hexagonal boron nitride planar-alignment agent. 采用二维六方氮化硼平面对准剂的铁电液晶器件中离子效应的降低和自发极化的增强。

IF 2.2 3区物理与天体物理

Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.025402

Rajratan Basu

{"title":"Reduced ionic effects and enhanced spontaneous polarization in a ferroelectric liquid crystal device employing a two-dimensional hexagonal boron nitride planar-alignment agent.","authors":"Rajratan Basu","doi":"10.1103/PhysRevE.111.025402","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.025402","url":null,"abstract":"The presence of excess free-ion impurities in ferroelectric liquid crystals (FLCs) results in several issues in electro-optical liquid-crystal displays (LCDs), such as slow electro-optical responses and image-sticking effects. This study experimentally demonstrated that two-dimensional (2D) hexagonal boron nitride (h-BN) nanosheets can function as both planar alignment and ion-capturing agents in an electro-optic FLC device. The 2D h-BN nanosheet was used as a planar alignment agent on one side of an LC cell, while a standard planar-aligning polyimide (PI) layer was used on the other side of the cell. The FLC exhibited uniform planar alignment in this h-BN-PI cell configuration. The results showed that free-ion impurities in the FLC were significantly suppressed in the h-BN-PI cell compared to a standard PI-PI LC cell. This reduction in free-ion density in the h-BN-PI cell was attributed to the ion-capturing capability of the 2D h-BN nanosheets. Consequently, the reduction of ionic impurities led to enhanced effective spontaneous polarization and accelerated electro-optic response of the FLC in the h-BN-based cell.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-2","pages":"025402"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659373","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

How social network structure impacts the ability of zealots to promote weak opinions. 社会网络结构如何影响狂热者推广弱势观点的能力。

IF 2.2 3区物理与天体物理

Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024311

Thomas Tunstall

引用次数: 0

Asymptotic methods for confined fluids. 受限流体的渐近方法。

IF 2.2 3区物理与天体物理

Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024144

E Di Bernardo, J M Brader

引用次数: 0

Data-driven discovery of self-similarity using neural networks. 使用神经网络的数据驱动的自相似性发现。

IF 2.2 3区物理与天体物理

Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024301

Ryota Watanabe, Takanori Ishii, Yuji Hirono, Hirokazu Maruoka

{"title":"Data-driven discovery of self-similarity using neural networks.","authors":"Ryota Watanabe, Takanori Ishii, Yuji Hirono, Hirokazu Maruoka","doi":"10.1103/PhysRevE.111.024301","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.024301","url":null,"abstract":"Finding self-similarity is a key step for understanding the governing law behind complex physical phenomena. Traditional methods for identifying self-similarity often rely on specific models, which can introduce significant bias. In this paper, we present a neural network-based approach that discovers self-similarity directly from observed data, without presupposing any models. The presence of self-similar solutions in a physical problem signals that the governing law contains a function whose arguments are given by power-law monomials of physical parameters, which are characterized by power-law exponents. The basic idea is to enforce such particular forms structurally in a neural network in a parametrized way. We train the neural network model using the observed data, and when the training is successful, we can extract the power exponents that characterize scale-transformation symmetries of the physical problem. We demonstrate the effectiveness of our method with both synthetic and experimental data, validating its potential as a robust, model-independent tool for exploring self-similarity in complex systems.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-1","pages":"024301"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659539","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

Strain-dependent evolution of avalanche dynamics in bulk metallic glass. 块状金属玻璃中雪崩动力学随应变的演变。

IF 2.2 3区物理与天体物理

Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.025410

Qi Huang, Kaiguo Chen, Chen Liu, Guisen Liu, Yang Shao, Chenlong Zhao, Ran Chen, Hengtong Bu, Lingti Kong, Yao Shen

{"title":"Strain-dependent evolution of avalanche dynamics in bulk metallic glass.","authors":"Qi Huang, Kaiguo Chen, Chen Liu, Guisen Liu, Yang Shao, Chenlong Zhao, Ran Chen, Hengtong Bu, Lingti Kong, Yao Shen","doi":"10.1103/PhysRevE.111.025410","DOIUrl":"https://doi.org/10.1103/PhysRevE.111.025410","url":null,"abstract":"Avalanche phenomena characterized by power-law scaling are observed in amorphous solids and many other nonequilibrium systems during their deformation. Avalanches in these systems often exhibit scale invariance, a feature reminiscent of critical phenomena and universality classes, although their fundamental nature remains unclear. In this paper, we use in situ acoustic emission techniques to experimentally investigate the characteristics and evolution of avalanches during the deformation process of bulk metallic glass (BMG), a representative amorphous solid. We observed abundant avalanche events from the microplastic deformation region to the failure of the sample. We find that avalanches are power-law distributed with an exponent decreasing from 1.61 to 1.49 with increasing deformation throughout the tensile experiment. By quantitatively analyzing the strong strain dependence of various avalanche characteristics, we highlight the importance of additional coefficients that complete the widely studied finite size scaling description of avalanche dynamics and revealed a strain-mediated avalanche scaling mechanism. Through surface morphology analysis and spectral analysis of avalanche signals in BMG samples, we conclude that the underlying process of these avalanches are not macroscopic, such as cracks and large shear band propagation, but is instead related to nanoscale microstructural adjustments. Our results encourage further exploration into the microscopic origins of avalanches and suggest that theoretical frameworks beyond finite-size scaling merit more in-depth investigations.","PeriodicalId":48698,"journal":{"name":"Physical Review E","volume":"111 2-2","pages":"025410"},"PeriodicalIF":2.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143659444","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

Editorial: Physical Review E-A Uniquely Diverse Journal. 社论：物理评论e -一份独特的多样化期刊。

IF 2.2 3区物理与天体物理

Physical Review E Pub Date : 2025-02-01 Epub Date: 2025-02-11 DOI: 10.1103/PhysRevE.111.020001

Patrick Charbonneau, Dario Corradini

引用次数: 0

Universality classes of thermalization and energy diffusion. 热化和能量扩散的通用性类。

IF 2.2 3区物理与天体物理

Physical Review E Pub Date : 2025-02-01 DOI: 10.1103/PhysRevE.111.024122

Wei Lin, Weicheng Fu, Zhen Wang, Yong Zhang, Hong Zhao

引用次数: 0

Fast and slow escapes in forced chaotic scattering: The Newtonian and the relativistic regimes. 强迫混沌散射中的快慢逸散：牛顿和相对论体系。