Transient rectification of Brownian diffusion with asymmetric initial distribution
Statistical Mechanics
2009-11-13 v2
Abstract
In an ensemble of non-interacting Brownian particles, a finite systematic average velocity may temporarily develop, even if it is zero initially. The effect originates from a small nonlinear correction to the dissipative force, causing the equation for the first moment of velocity to couple to moments of higher order. The effect may be relevant when a complex system dissociates in a viscous medium with conservation of momentum.
Cite
@article{arxiv.0705.3463,
title = {Transient rectification of Brownian diffusion with asymmetric initial distribution},
author = {A. V. Plyukhin and A. M. Froese},
journal= {arXiv preprint arXiv:0705.3463},
year = {2009}
}