Self-diffusion in granular gases
统计力学
2009-10-31 v2
摘要
The coefficient of self-diffusion for a homogeneously cooling granular gas changes significantly if the impact-velocity dependence of the restitution coefficient is taken into account. For the case of a constant the particles spread logarithmically slow with time, whereas the velocity dependent coefficient yields a power law time-dependence. The impact of the difference in these time dependences on the properties of a freely cooling granular gas is discussed.
引用
@article{arxiv.cond-mat/9803387,
title = {Self-diffusion in granular gases},
author = {Nikolai V. Brilliantov and Thorsten Poeschel},
journal= {arXiv preprint arXiv:cond-mat/9803387},
year = {2009}
}
备注
6 pages, no figures