English

Simple and efficient methods for local structural analysis in polydisperse hard disk systems

Statistical Mechanics 2024-05-07 v2 Computational Physics

Abstract

In nonequilibrium statistical physics, quantifying the nearest (and higher-order) neighbors and free volumes of particles in many-body systems is crucial to elucidating the origin of macroscopic collective phenomena, such as glass/granular jamming transitions and various aspects of the behavior of active matter. However, conventional techniques (based on a fixed-distance cutoff or the Voronoi construction) have mainly been applied to equilibrated, homogeneous, and monodisperse particle systems. In this paper, we implement simple and efficient methods for local structure analysis in nonequilibrium, inhomogeneous, and polydisperse hard disk systems. We show how these novel methods can overcome the difficulties encountered by conventional techniques, as well as demonstrating some applications.

Keywords

Cite

@article{arxiv.2404.12912,
  title  = {Simple and efficient methods for local structural analysis in polydisperse hard disk systems},
  author = {Daigo Mugita and Kazuyoshi Souno and Hiroaki Koyama and Taisei Nakamura and Masaharu Isobe},
  journal= {arXiv preprint arXiv:2404.12912},
  year   = {2024}
}

Comments

16 pages, 15 figures

R2 v1 2026-06-28T15:59:52.736Z