Ballistic file diffusion of hard-core particles in one-dimensional channels: A numerical study

P.M. Centres, S.J. Manzi, V.D. Pereyra and S. Bustingorry

Physica A: Statistical Mechanics and its Applications, 2023, vol. 629, issue C

Abstract: One-dimensional movement of interacting particles is a challenging problem where the correlation between particles induces non-trivial collective effects. In contrast to the single-file diffusion case, the pure ballistic single-file movement of particles has received less attention. Here, the ballistic file diffusion of hard disks is studied using an adaptative continuum Monte Carlo numerical scheme. Dynamics is studied as a function of the size of the particles, the system size and the number of particles. The mean-square displacement presents three regimes corresponding to independent motion, collective motion and finite-size effects. These regimes and the crossover times between them are analyzed and presented in analogy with the ones observed for the single-file diffusion problem.

Keywords: Diffusion; Hard-core interaction; Monte Carlo molecular dynamics; Mean square displacement; Global roughness (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:629:y:2023:i:c:s037843712300780x

DOI: 10.1016/j.physa.2023.129225

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