Driven classical diffusion with strong correlated disorder

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

We analyze one-dimensional motion of an overdamped classical particle in the presence of external disorder potential and an arbitrary driving force F. In thermodynamical limit the effective force-dependent mobility mu(F) is self-averaging, although the required system size may be exponentially large for strong disorder. We calculate the mobility mu(F) exactly, generalizing the known results in linear response (weak driving force) and the perturbation theory in powers of the disorder amplitude. For a strong disorder potential with power-law correlations we identify a non-linear regime with a prominent power-law dependence of the logarithm of mu(F) on the driving force.
4 pages, 2 figures included

Keywords

Disordered Systems and Neural Networks

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/24702

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/0408544
 http://arxiv.org/abs/cond-mat/0408544
 Phys. Rev. E 72, 011108 (2005)
 doi:10.1103/PhysRevE.72.011108

Collections

arXiv