Absolute Transverse Mobility and Ratchet Effect on Periodic 2D Symmetric Substrates
Statistical Mechanics
2009-11-07 v2 Soft Condensed Matter
Abstract
We present a simple model of an overdamped particle moving on a two dimensional symmetric periodic substrate with a dc drive in the longitudinal direction and additional ac drives in both the longitudinal and transverse directions. For certain regimes we find that a finite longitudinal dc force produces a net dc response only in the transverse direction, which we term absolute transverse mobility. Additionally we find regimes exhibiting a ratchet effect in the absence of an applied dc drive.
Cite
@article{arxiv.cond-mat/0212576,
title = {Absolute Transverse Mobility and Ratchet Effect on Periodic 2D Symmetric Substrates},
author = {C. Reichhardt and C. J. Olson Reichhardt},
journal= {arXiv preprint arXiv:cond-mat/0212576},
year = {2009}
}
Comments
8 pages, 8 postscript figures. Expanded version with additional phase diagrams and discussion