Off-equilibrium dynamics in a singular diffusion model
Statistical Mechanics
2008-07-03 v2
Abstract
We introduce a schematic non-linear diffusion model where density fluctuations induce a rich out of equilibrium dynamics. The properties of the model are studied by numerical simulations and analytically in a mean field approximation. At low temperatures and high densities we find a long off-equilibrium glassy region, where the system evolves out of an initially pinned state showing aging and a slow decay of the autocorrelation as an enhanced power law, along with strong spatial heterogeneities and violation of the fluctuation dissipation theorem.
Cite
@article{arxiv.cond-mat/9907082,
title = {Off-equilibrium dynamics in a singular diffusion model},
author = {Federico Corberi and Mario Nicodemi and Marina Piccioni and Antonio Coniglio},
journal= {arXiv preprint arXiv:cond-mat/9907082},
year = {2008}
}
Comments
4 pages, 2 figures