Uphill migration in coupled driven particle systems
Statistical Mechanics
2019-09-04 v2
Abstract
In particle systems subject to a nonuniform drive, particle migration is observed from the driven to the non--driven region and vice--versa, depending on details of the hopping dynamics, leading to apparent violations of Fick's law and of steady--state thermodynamics. We propose and discuss a very basic model in the framework of independent random walkers on a pair of rings, one of which features biased hopping rates, in which this phenomenon is observed and fully explained.
Cite
@article{arxiv.1904.04325,
title = {Uphill migration in coupled driven particle systems},
author = {Emilio N. M. Cirillo and Matteo Colangeli and Ronald Dickman},
journal= {arXiv preprint arXiv:1904.04325},
year = {2019}
}
Comments
8 pages, 10 figures