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Optimal placement of a dissimilar node for chaos suppression in networks 在网络中优化异类节点的位置以抑制混乱
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-24 DOI: 10.1209/0295-5075/ad51a2
Komal Chawla and Sudeshna Sinha
{"title":"Optimal placement of a dissimilar node for chaos suppression in networks","authors":"Komal Chawla and Sudeshna Sinha","doi":"10.1209/0295-5075/ad51a2","DOIUrl":"https://doi.org/10.1209/0295-5075/ad51a2","url":null,"abstract":"We demonstrate that the presence of a single dissimilar chaotic system suppresses chaos in networks of chaotic oscillators, in a diverse set of network topologies, for sufficiently strong coupling. The key property is determined to be the sum of the path lengths between the dissimilar node and all the other nodes (or its maximum, if coupled to unconnected networks), and there exists a linear relation between this quantity and the critical coupling strength for the onset of a spatiotemporal fixed point. This holds true for a chain with the dissimilar node at different locations, a ring and complete network with one embedded dissimilar node, as well as star networks with a dissimilar hub or dissimilar peripheral node. Furthermore, we show that networks with high average degree and high clustering coefficient are more resilient to the influence of an external dissimilar system. These findings will potentially aid in the design of optimally placed dissimilar nodes for controlling chaos in complex networks.","PeriodicalId":11738,"journal":{"name":"EPL","volume":"353 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Effect of constraint relaxation on dynamic critical phenomena in minimum vertex cover problem 约束松弛对最小顶点覆盖问题动态临界现象的影响
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-24 DOI: 10.1209/0295-5075/ad5102
A. Dote and K. Hukushima
{"title":"Effect of constraint relaxation on dynamic critical phenomena in minimum vertex cover problem","authors":"A. Dote and K. Hukushima","doi":"10.1209/0295-5075/ad5102","DOIUrl":"https://doi.org/10.1209/0295-5075/ad5102","url":null,"abstract":"The effects of constraint relaxation on dynamic critical phenomena in the Minimum Vertex Cover (MVC) problem on Erdős-Rényi random graphs are investigated using Markov chain Monte Carlo simulations. Following our previous work that revealed the reduction of the critical temperature by constraint relaxation based on the penalty function method, this study focuses on investigating the critical properties of the relaxation time along its phase boundary. It is found that the dynamical correlation function of MVC with respect to the problem size and the constraint strength follows a universal scaling function. The analysis shows that the relaxation time decreases as the constraints are relaxed. This decrease is more pronounced for the critical amplitude than for the critical exponent, and this result is interpreted in terms of the system's microscopic energy barriers due to the constraint relaxation.","PeriodicalId":11738,"journal":{"name":"EPL","volume":"69 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Telling late-time tails for a massive scalar field in the background of brane-localized black holes 讲述rane-localized黑洞背景中的大质量标量场的晚时尾巴
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-24 DOI: 10.1209/0295-5075/ad51a3
Alexey Dubinsky
{"title":"Telling late-time tails for a massive scalar field in the background of brane-localized black holes","authors":"Alexey Dubinsky","doi":"10.1209/0295-5075/ad51a3","DOIUrl":"https://doi.org/10.1209/0295-5075/ad51a3","url":null,"abstract":"We examine perturbations of a massive scalar field around spherically symmetric, brane-localized black holes. Although the ringdown and asymptotic tails of various brane-world black holes have been extensively studied, there has been no analysis of the massive late-time tails for the simplest Schwarzschild-like, brane-localized black hole to date. We demonstrate that after the ringdown phase, two stages of oscillatory tails emerge —intermediate and asymptotic. The asymptotic decay law is distinct from those associated with Schwarzschild or Reissner-Nordström solutions. Specifically, during intermediate times, the signal decays as , while the asymptotic decay law is .","PeriodicalId":11738,"journal":{"name":"EPL","volume":"48 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141778722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
A realistic neutrino mixing scheme arising from A4 symmetry 由 A4 对称性产生的现实中微子混合方案
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-21 DOI: 10.1209/0295-5075/ad57eb
Manash Dey and Subhankar Roy
{"title":"A realistic neutrino mixing scheme arising from A4 symmetry","authors":"Manash Dey and Subhankar Roy","doi":"10.1209/0295-5075/ad57eb","DOIUrl":"https://doi.org/10.1209/0295-5075/ad57eb","url":null,"abstract":"We propose a unique lepton mixing scheme and its association with an exact hierarchy-philic neutrino mass matrix texture in the light of Type-I+Type-II seesaw mechanism under the framework of discrete flavour symmetry. The proposed model successfully predicts the normal ordering of neutrino masses and the two Majorana phases. Additionally, the analysis extends to the effective Majorana neutrino mass, in the context of neutrinoless double beta .","PeriodicalId":11738,"journal":{"name":"EPL","volume":"342 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141754015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Apparent dark matter inspired by the Einstein equation of state 受爱因斯坦状态方程启发的表观暗物质
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-17 DOI: 10.1209/0295-5075/ad59bd
Kimet Jusufi and Ahmad Sheykhi
{"title":"Apparent dark matter inspired by the Einstein equation of state","authors":"Kimet Jusufi and Ahmad Sheykhi","doi":"10.1209/0295-5075/ad59bd","DOIUrl":"https://doi.org/10.1209/0295-5075/ad59bd","url":null,"abstract":"The purpose of this article is twofold. First, by means of Padmanabhan's proposal on the emergence nature of gravity, we recover the ΛCDM model and the effect of the dark matter in the context of cosmology. Toward this goal, we use the key idea of Padmanabhan that states cosmic space emerges as the cosmic time progresses and links the emergence of space to the difference between the number of degrees of freedom on the boundary and in the bulk. Interestingly enough, we show that the effect of the cold dark matter in the cosmological setup can be understood by assuming an interaction between the numbers of degrees of freedom in the bulk. In the second part, we follow Jacobson's argument and obtain the modified Einstein field equations with additional dark matter component emerging due to the interaction term between dark energy and baryonic matter related by , where α is a coupling constant. Finally, a correspondence with the Yukawa cosmology is pointed out, and the role of massive gravitons as a possibility in explaining the nature of the dark sector as well as the theoretical origin of the Modified Newtonian Dynamics (MOND) are addressed. We speculate that the interaction coupling α fundamentally measures the entanglement between the gravitons and matter fields and there exists a fundamental limitation in measuring the gravitons wavelength.","PeriodicalId":11738,"journal":{"name":"EPL","volume":"43 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740230","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
The spectrum consistency of fractional quantum Hall effect model 分数量子霍尔效应模型的频谱一致性
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-17 DOI: 10.1209/0295-5075/ad59be
O. M. Del Cima, L. S. Lima and E. S. Miranda
{"title":"The spectrum consistency of fractional quantum Hall effect model","authors":"O. M. Del Cima, L. S. Lima and E. S. Miranda","doi":"10.1209/0295-5075/ad59be","DOIUrl":"https://doi.org/10.1209/0295-5075/ad59be","url":null,"abstract":"The spectrum consistency of the three-fermion family quantum electrodynamics in three space-time dimensions is analyzed. It has been verified that the originally proposed action violates the unitarity consistency condition in the gauge field sector by exhibiting negative norm states in the spectrum. However, the cure came through the fundamental gauge fields properly settled, consequently, the action rewritten in terms of those fundamental fields shows to be free from any spurious degrees of freedom, and the model now becomes safe for further quantization.","PeriodicalId":11738,"journal":{"name":"EPL","volume":"55 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Firehose instability in heat-conducting solar wind plasmas including FLR corrections and electrical resistivity 导热太阳风等离子体中的火管不稳定性，包括 FLR 校正和电阻率
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-16 DOI: 10.1209/0295-5075/ad59c0
Ram Prasad Prajapati
{"title":"Firehose instability in heat-conducting solar wind plasmas including FLR corrections and electrical resistivity","authors":"Ram Prasad Prajapati","doi":"10.1209/0295-5075/ad59c0","DOIUrl":"https://doi.org/10.1209/0295-5075/ad59c0","url":null,"abstract":"The effects of finite Larmor radius (FLR) corrections and heat-flux vector are studied on the pressure anisotropy-driven firehose instability in finitely conducting solar wind plasmas described by the double-adiabatic Chew, Goldberger and Low (CGL) fluid theory. The fluid description of collisionless plasmas is governed through modified adiabatic equations due to the heat-flux vector and finite ion Larmor radius corrections. The analytical dispersion relation of the firehose instability has been derived using the normal mode analysis and discussed in the solar wind plasmas. In the transverse mode, the dispersion relation of the Alfvénic mode is modified due to electrical resistivity and FLR corrections. In the longitudinal mode, the effects of the heat-flux parameter and electrical resistivity are observed separately. The dispersion relation of the firehose mode is modified due to the combined effects of FLR corrections and electrical resistivity. The graphical illustrations show that finite electrical resistivity and ion Larmor frequency destabilize the growth rate of the firehose instability. The results are useful for analyzing the solar mission data to study the firehose instability in the solar wind plasmas.","PeriodicalId":11738,"journal":{"name":"EPL","volume":"36 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141740231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Thin elastic films and membranes under rectangular confinement 矩形约束下的弹性薄膜和薄膜
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-15 DOI: 10.1209/0295-5075/ad5a39
A. R. Sprenger, H. Reinken, T. Richter and A. M. Menzel
{"title":"Thin elastic films and membranes under rectangular confinement","authors":"A. R. Sprenger, H. Reinken, T. Richter and A. M. Menzel","doi":"10.1209/0295-5075/ad5a39","DOIUrl":"https://doi.org/10.1209/0295-5075/ad5a39","url":null,"abstract":"We address the deformations within a thin elastic film or membrane in a two-dimensional rectangular confinement. To this end, analytical considerations of the Navier-Cauchy equations describing linear elasticity are performed in the presence of a localized force center, that is, a corresponding Green's function is determined, under no-slip conditions at the clamped boundaries. Specifically, we find resulting displacement fields for different positions of the force center. It turns out that clamping regularizes the solution when compared to an infinitely extended system. Increasing compressibility renders the displacement field more homogeneous under the given confinement. Moreover, varying aspect ratios of the rectangular confining frame qualitatively affect the symmetry and appearance of the displacement field. Our results are confirmed by comparison with corresponding finite-element simulations.","PeriodicalId":11738,"journal":{"name":"EPL","volume":"63 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Novel complexiton solutions to the new extended (3+1)-dimensional Boiti-Leon-Manna-Pempinelli equation for incompressible fluid 不可压缩流体的新扩展 (3+1) 维波伊蒂-里昂-曼纳-彭皮内利方程的新复合子解决方案
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-14 DOI: 10.1209/0295-5075/ad59c1
Kang-Jia Wang and Shuai Li
{"title":"Novel complexiton solutions to the new extended (3+1)-dimensional Boiti-Leon-Manna-Pempinelli equation for incompressible fluid","authors":"Kang-Jia Wang and Shuai Li","doi":"10.1209/0295-5075/ad59c1","DOIUrl":"https://doi.org/10.1209/0295-5075/ad59c1","url":null,"abstract":"This letter focuses on exploring some novel exact solutions to the new extended (3+1)-dimensional Boiti-Leon-Manna-Pempinelli equation (BLMPE) that has a major role in incompressible fluid. Adopting the Cole-Hopf transformation, the bilinear form of the considered equation is successfully constructed. Then the singular complexiton solutions (SCSs) are developed by applying the ansatz function method with a novel functional form. Additionally, we also find the non-singular complexiton solutions (NCSs) via imposing the restrictive conditions. To unveil the behaviors of the attained solutions better, the corresponding outlines are plotted via Maple.","PeriodicalId":11738,"journal":{"name":"EPL","volume":"49 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
Message-passing approach for percolation on the networked system: A mini-review 网络系统渗滤的消息传递方法：微型综述
IF 1.8 4区 物理与天体物理
EPL Pub Date : 2024-07-14 DOI: 10.1209/0295-5075/ad5971
Cheng Qian, Dan-Dan Zhao, Ming Zhong, Bo Zhang, Hao Peng and Wei Wang
{"title":"Message-passing approach for percolation on the networked system: A mini-review","authors":"Cheng Qian, Dan-Dan Zhao, Ming Zhong, Bo Zhang, Hao Peng and Wei Wang","doi":"10.1209/0295-5075/ad5971","DOIUrl":"https://doi.org/10.1209/0295-5075/ad5971","url":null,"abstract":"Network percolation is one of the core topics in network science, especially in understanding and optimizing the robustness of real-world networks. As a powerful tool, the message-passing approach shows unique advantages in characterizing network percolation compared with the mean-field approach. This approach simulates the behavioural response when the network is damaged by transmitting and updating messages between network nodes, thereby accurately assessing the robustness of the network. This paper reviews the progress of message-passing approaches in network percolation on simple networks, multilayer networks and higher-order networks in recent years and discusses the application of this approach in other research fields. Finally, we discuss future research directions around this approach.","PeriodicalId":11738,"journal":{"name":"EPL","volume":"47 1","pages":""},"PeriodicalIF":1.8,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141719684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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
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