Physica A: Statistical Mechanics and its Applications最新文献_第10页

Percolation on sites visited by continuous random walks in a simple cubic lattice 在简单立方晶格中连续随机漫步所访问的地点上的渗透

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-14 DOI: 10.1016/j.physa.2025.130975

Hoseung Jang, Unjong Yu

{"title":"Percolation on sites visited by continuous random walks in a simple cubic lattice","authors":"Hoseung Jang, Unjong Yu","doi":"10.1016/j.physa.2025.130975","DOIUrl":"10.1016/j.physa.2025.130975","url":null,"abstract":"<div><div>We investigate the percolation on sites visited by random walks with fixed step lengths in a simple cubic lattice, where the random walker moves in continuous space. Using the Newman–Ziff algorithm combined with finite-size scaling analysis, we calculate the percolation threshold and critical exponents <span><math><mi>ν</mi></math></span>, <span><math><mi>β</mi></math></span>, and <span><math><mi>γ</mi></math></span> for various step lengths. Our results reveal that the values of these exponents depend on the step length <span><math><mi>l</mi></math></span>. Specifically, for <span><math><mrow><mn>2</mn><mo>≤</mo><mi>l</mi><mo>≤</mo><mn>3</mn></mrow></math></span>, the critical exponents align with those of the percolation models based on discrete random walks in three dimensions, and gradually transform to the values of the ordinary three-dimensional site percolation as <span><math><mi>l</mi></math></span> increases. We analyze that these changes occur because the correlation function varies with the step length <span><math><mi>l</mi></math></span>. Moreover, we confirm that the hyperscaling relation <span><math><mrow><mi>ν</mi><mi>d</mi><mo>=</mo><mn>2</mn><mi>β</mi><mo>+</mo><mi>γ</mi></mrow></math></span> is valid, despite the variation in the critical exponents.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"678 ","pages":"Article 130975"},"PeriodicalIF":3.1,"publicationDate":"2025-09-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106175","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

Correlations in motion: A simple response-based analysis of traffic flow 运动中的相关性：一个简单的基于响应的交通流分析

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-13 DOI: 10.1016/j.physa.2025.130962

Sebastian Gartzke, Shanshan Wang, Thomas Guhr, Michael Schreckenberg

引用次数: 0

Unveiling epidemic spreading and control on networks with self-recovery and social support 在自我恢复和社会支持的网络上揭示疫情的传播和控制

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-12 DOI: 10.1016/j.physa.2025.130968

Qingchu Wu , Lin Wang

引用次数: 0

Multi-level community-based centrality integrating local-to-global information for identifying critical components 基于社区的多层次中心性集成了本地到全球的信息，用于识别关键组件

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-12 DOI: 10.1016/j.physa.2025.130973

Yifan Wang , Ziyang Jin , Dongli Duan , Ning Wang

{"title":"Multi-level community-based centrality integrating local-to-global information for identifying critical components","authors":"Yifan Wang , Ziyang Jin , Dongli Duan , Ning Wang","doi":"10.1016/j.physa.2025.130973","DOIUrl":"10.1016/j.physa.2025.130973","url":null,"abstract":"<div><div>The structural heterogeneity of complex networks across scales (local-to-global) results in critical components that disproportionately drive system functionality. Identifying and protecting critical components is of great theoretical and practical significance for ensuring the safe and efficient operation of complex systems. Recently, there has been a notable trend in applying centrality measures to identify critical components within networks. However, existing approaches rarely incorporate integrated multi-scale analysis, encompassing both local and global network properties. To fill this gap, this study proposed the Multi-level Community Structure Centrality (MCSC) method for identifying critical components. The MCSC approach employs a hierarchical community detection algorithm to capture multi-scale structural information. At each hierarchical level, the method evaluates component influence by incorporating community size, inter-community connection density, and adjacent components competition relationships. The effectiveness of the proposed method was evaluated through comprehensive testing on diverse real-world network datasets. The results demonstrate that MCSC performs well in terms of interpretability, identification accuracy, computational cost, and applicability, outperforming classical centrality measures in most networks.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"678 ","pages":"Article 130973"},"PeriodicalIF":3.1,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106671","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

Extreme-value statistics and super-universality in critical percolation? 临界渗流中的极值统计与超普适性？

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-11 DOI: 10.1016/j.physa.2025.130934

Mohadeseh Feshanjerdi , Peter Grassberger

引用次数: 0

Comparison of crowd evacuation efficiency under static signage and dynamic personnel guidance from an emotional contagion perspective 情绪传染视角下静态标牌与动态人员引导下人群疏散效率比较

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-11 DOI: 10.1016/j.physa.2025.130977

Qiquan Wang, Huiquan Miao, Chengshun Xu, Benwei Hou

{"title":"Comparison of crowd evacuation efficiency under static signage and dynamic personnel guidance from an emotional contagion perspective","authors":"Qiquan Wang, Huiquan Miao, Chengshun Xu, Benwei Hou","doi":"10.1016/j.physa.2025.130977","DOIUrl":"10.1016/j.physa.2025.130977","url":null,"abstract":"<div><div>This study investigates the comparative effectiveness of two emergency guidance strategies—static signage and dynamic personnel guidance—within the context of emotional contagion, aiming to optimize the allocation of guidance resources. An improved Emotion Contagion–Guidance Coupled SIR (Susceptible-Infected-Recovered) model is incorporated into a multi-agent simulation framework to dynamically replicate emotional contagion and evacuation behaviors during the early warning stage or initial phase of a disaster. Simulations are conducted under varying levels of guidance resource availability in an urban area with a population of 59,800 based on the NetLogo platform, with each strategy implemented independently. Key performance indicators—including evacuation completion rate, evacuation time, and emotional contagion frequency—are evaluated and compared. Results show that under resource-scarce conditions, dynamic guidance facilitates faster evacuation initiation and significantly reduces evacuation time due to its real-time, point-to-point intervention capability. Under moderate resource availability, static signage demonstrates higher evacuation efficiency due to its broad coverage and sustained influence. When resources are abundant, the performance gap between the two strategies narrows, and both exhibit diminishing marginal returns. Furthermore, static signage is more effective at mitigating panic and maintaining emotional stability, whereas dynamic guidance may marginally elevate early-stage emotional contagion due to intensified interpersonal interactions. These findings provide theoretical support for the strategic deployment and integration of emergency guidance strategies across diverse disaster scenarios, thereby enhancing evacuation effectiveness.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"678 ","pages":"Article 130977"},"PeriodicalIF":3.1,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059923","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

Galvanodissipative effect in open two-dimensional quantum system 开放二维量子系统中的电偶耗散效应

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-11 DOI: 10.1016/j.physa.2025.130972

E.Kh. Alpomishev , G.G. Adamian , N.V. Antonenko

引用次数: 0

Permutation extropy: A new time series complexity measure 置换外向性：一种新的时间序列复杂度度量

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-10 DOI: 10.1016/j.physa.2025.130951

Ritik Roshan Giri , Suchandan Kayal , Javier E. Contreras-Reyes

引用次数: 0

A knowledge-data dual-driven framework for intelligent flood evacuation in subway stations 基于知识数据双驱动的地铁车站洪水智能疏散框架

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-10 DOI: 10.1016/j.physa.2025.130924

Xiaoxia Yang , Jiahui Wan , Yongxing Li , Chuan-Zhi (Thomas) Xie , Botao Zhang

{"title":"A knowledge-data dual-driven framework for intelligent flood evacuation in subway stations","authors":"Xiaoxia Yang , Jiahui Wan , Yongxing Li , Chuan-Zhi (Thomas) Xie , Botao Zhang","doi":"10.1016/j.physa.2025.130924","DOIUrl":"10.1016/j.physa.2025.130924","url":null,"abstract":"<div><div>Traditional building evacuation planning often lacks real-time adaptability in subway floods due to over-reliance on simulations, which bring complex physics and calibration challenges, leading to delays in risk assessment and jeopardizing occupant safety. To address this challenge, this study proposes a novel knowledge-data dual-driven framework for intelligent flood evacuation management in subway stations. The framework integrates rapid data-driven prediction enhanced by simulation-derived knowledge, and fast optimization guided by knowledge-based risk assessment within a decision-support system, aiming to improve real-time responsiveness and occupant safety. The novel components in this framework include a red-billed blue magpie-optimized deep learning model for evacuation time and density prediction with SHAP interpretability, a cloud-based fuzzy evaluation system for flood risk quantification, a multi-objective path optimizer balancing evacuation time and slip-fall risks, and a convolutional genetic algorithm for efficient solution generation. A real subway station case study is conducted by using Fluent and PathFinder to validate the proposed method, demonstrating that: (1) The prediction model achieves a 6.44% improvement over traditional TCN-GRU methods. (2) The cloud model-based weighting method effectively quantifies safety risks, providing data support for emergency decisions. (3) The path optimization method reduces evacuation time by 46.44 s and peak crowd density by 0.8477 p/m<sup>2</sup>, outperforming conventional methods by over 15.4%. These advancements position the framework as a transformative decision-support tool for intelligent building operations in underground structures, directly contributing to sustainable and safe built environments.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"678 ","pages":"Article 130924"},"PeriodicalIF":3.1,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145106667","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

Symmetry-breaking transport in coupled systems: Role of skewed active fluctuations and interparticle interactions 耦合系统中的对称性破缺输运：偏斜主动涨落和粒子间相互作用的作用

IF 3.1 3区物理与天体物理

Physica A: Statistical Mechanics and its Applications Pub Date : 2025-09-10 DOI: 10.1016/j.physa.2025.130956

Li-Ming Fan , Mei-Qi Li , Ming-Gen Li , Tian-Fu Gao , Jing-Dong Bao

{"title":"Symmetry-breaking transport in coupled systems: Role of skewed active fluctuations and interparticle interactions","authors":"Li-Ming Fan , Mei-Qi Li , Ming-Gen Li , Tian-Fu Gao , Jing-Dong Bao","doi":"10.1016/j.physa.2025.130956","DOIUrl":"10.1016/j.physa.2025.130956","url":null,"abstract":"<div><div>We investigate the directed transport of coupled particles driven by active fluctuations in symmetric periodic potentials, revealing transport behaviors beyond thermal equilibrium predictions. A systematic numerical analysis of the center-of-mass velocity demonstrates that even without spatial asymmetry, active fluctuations induce a range of transport regimes under high potential barriers, including enhancement, suppression, and quasi-free transport. The velocity exhibits maxima or minima at optimal coupling strengths, dictated by the skewness of the pulse distribution. Additionally, the interplay between spiking rate and pulse amplitude induces velocity reversals with a non-monotonic dependence on the spiking rate, while at a fixed mean of active fluctuations, distinct non-monotonic behaviors emerge, featuring pronounced velocity valleys and peaks. To explain these transport phenomena, we identify two novel mechanisms arising from the discrete nature of active fluctuations: dual-mode motion, where impulsive jumps combine with potential-gradient sliding, and passive drag, where passive particles are transported via forced coupling. These findings provide fundamental insights into cooperative transport in active systems and offer guiding principles for designing biomimetic micro- and nanoscale devices capable of collective operation in complex environments.</div></div>","PeriodicalId":20152,"journal":{"name":"Physica A: Statistical Mechanics and its Applications","volume":"678 ","pages":"Article 130956"},"PeriodicalIF":3.1,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145047021","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