On the amplification of diffusion on piecewise linear potentails by direct current
Soft Condensed Matter
2007-05-23 v2
Abstract
The diffusive motion of overdamped Brownian particles in tilted piecewise linear pontentials is considered. It is shown that the enhancement of diffusion coefficient by an external static force is quite sensitive to the symmetry of periodic potential. Another new effect found is that the factor of randomness as a function of the tilting force exibits a plateau-like behaviour in the region of low temperatures.
Cite
@article{arxiv.cond-mat/0208532,
title = {On the amplification of diffusion on piecewise linear potentails by direct current},
author = {Els Heinsalu and Risto Tammelo and Teet Ord},
journal= {arXiv preprint arXiv:cond-mat/0208532},
year = {2007}
}
Comments
9 pages, 5 figures; some changes introduced; submitted to Phys. Lett. A