Front propagation in random media: From extremal to activated dynamics
Disordered Systems and Neural Networks
2009-11-07 v1
Abstract
Front propagation in a random environment is studied close to the depinning threshold. At zero temperature we show that the depinning force distribution exhibits a universal behavior. This property is used to estimate the velocity of the front at very low temperature. We obtain a Arrhenius behavior with a prefactor depending on the temperature as a power law. These results are supported by numerical simulations.
Cite
@article{arxiv.cond-mat/0203158,
title = {Front propagation in random media: From extremal to activated dynamics},
author = {Rune Skoe and Damien Vandembroucq and Stephane Roux},
journal= {arXiv preprint arXiv:cond-mat/0203158},
year = {2009}
}
Comments
6 pages, 2 figures, accepted in Int. J. Mod. Phys. C