Dynamical transitions in correlated driven diffusion in a periodic potential
统计力学
2009-10-30 v1 斑图形成与孤子
patt-sol
摘要
The diffusion of a two-dimensional array of particles driven by a constant force in the presence of a periodic external potential exhibits a hierarchy of dynamical phase transitions when the driving force is varied. This behavior can be explained by a simple phenomenological approach which reduces the system of strongly interacting particles to weakly interacting quasi-particles (kinks). The richness of the strongly coupled system is however not lost because, contrary to a single-Brownian particle, the array shows an hysteretic behavior even at non-zero temperature. The present investigation can be viewed as a first step toward understanding nanotribology.
引用
@article{arxiv.cond-mat/9701134,
title = {Dynamical transitions in correlated driven diffusion in a periodic potential},
author = {O. M. Braun and T. Dauxois and M. V. Paliy and M. Peyrard},
journal= {arXiv preprint arXiv:cond-mat/9701134},
year = {2009}
}
备注
4 pages, 3 pictures, revtex to appear in Phys Rev. Lett