Disorder Induced Diffusive Transport In Ratchets
Soft Condensed Matter
2009-10-31 v1 Statistical Mechanics
Abstract
The effects of quenched disorder on the overdamped motion of a driven particle on a periodic, asymmetric potential is studied. While for the unperturbed potential the transport is due to a regular drift, the quenched disorder induces a significant additional chaotic ``diffusive'' motion. The spatio-temporal evolution of the statistical ensemble is well described by a Gaussian distribution, implying a chaotic transport in the presence of quenched disorder.
Cite
@article{arxiv.cond-mat/0002173,
title = {Disorder Induced Diffusive Transport In Ratchets},
author = {M. N. Popescu and C. M. Arizmendi and A. L. Salas-Brito and F. Family},
journal= {arXiv preprint arXiv:cond-mat/0002173},
year = {2009}
}
Comments
10 pages, 4 EPS figures; submitted to Phys. Rev. Letters