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arXiv 2511.21082cond-mat.dis-nncond-mat.softmath.COnlin.AO
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由超均匀点模式生成的网络的局部几何和传输特性

Local Geometric and Transport Properties of Networks that are Generated from Hyperuniform Point Patterns

University of California, Los Angeles(加州大学洛杉矶分校);University of North Carolina at Chapel Hill(北卡罗来纳大学教堂山分校);Tandon School of Engineering, New York University(纽约大学坦登工程学院);Santa Fe Institute(圣塔菲研究所);Nordita(北欧理论天体物理学研究所);KTH Royal Institute of Technology(瑞典皇家理工学院);Stockholm University(斯德哥尔摩大学);Uppsala University(乌普萨拉大学)

James V. Raj, Xiaohan Sun, Charles Emmett Maher, Katherine A. Newhall, Mason A. Porter

AI总结:

本文研究了由超均匀点模式生成的网络的局部几何和传输特性,发现其在传输效率和鲁棒性方面优于由泊松点模式生成的网络。

摘要:

超均匀性是一种长程有序类型,其特点是与标准无序系统相比,长程密度波动被抑制。在本文中,我们利用超均匀点模式生成一类无序的、空间嵌入的网络,这些网络不同于完美有序的晶格和均匀随机几何图。我们将这些网络称为超均匀点模式诱导(HuPPI)网络,并将其与对应的泊松点模式诱导(PoPPI)网络进行比较。通过计算HuPPI网络的局部几何和传输特性,我们展示了超均匀性如何在传输效率和鲁棒性方面带来优势。具体来说,我们显示HuPPI网络的总有效电阻更小,随机游走混合时间稍快,极端曲率边更少。反直觉的是,我们还发现HuPPI网络同时具有更负的平均Ollivier-Ricci曲率和更小的总有效电阻,表明具有中等负曲率的边不需要造成严重的传输瓶颈。此外,HuPPI网络在随机边移除和基于曲率的目标边移除下都更加稳健,移除更多边后保持更大的连通分量。我们还展示了网络生成方法对这些性质有显著影响,并且尤其在很大程度上掩盖了底层点模式产生的差异。

英文摘要:

Hyperuniformity, which is a type of order that is characterized by the suppression of long-range density fluctuations in comparison to the fluctuations in standard disordered systems, has emerged as a powerful concept in many natural and engineered phenomena. In this paper, we harness hyperuniform point patterns to generate disordered, spatially-embedded networks that are distinct from both perfectly ordered lattices and uniformly random spatial networks. We refer to this class of disordered networks as \emph{hyperuniform-point-pattern-induced (HuPPI) networks}, and we compare them to counterpart \emph{Poisson-point-pattern-induced (PoPPI) networks} and networks that we generate from random-sequential-adsorption (RSA) packings (which have local order but are not hyperuniform). We examine HuPPI, PoPPI, and RSA networks that we generate using Gabriel, Delaunay, Delaunay-centroidal, and Voronoi network-generation methods. We show that HuPPI networks have smaller mean normalized total effective resistances (TERs) than PoPPI networks in Gabriel, Delaunay-centroidal, and Voronoi networks and have shorter mean random-walk mixing times than PoPPI networks in Gabriel, Delaunay, and Delaunay-centroidal networks. For all four network-generation methods and for both HuPPI and PoPPI networks, we find that the Ollivier--Ricci curvature (ORC) of an edge is negatively correlated with its TER edge contribution (i.e., the increase in TER that results from removing that edge). Collectively, our results (1) illustrate how the local network geometry that ORC measures is related to transport and network connectivity and (2) demonstrate that the network-generation method provides an additional design lever for spatial networks beyond the choice of their underlying point pattern. [This abstract is abridged significantly from the full abstract.]

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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