Transient superdiffusion in correlated diffusive media
Statistical Mechanics
2014-08-05 v1
Abstract
Diffusion processes are studied theoretically for the case where the diffusion coefficient is itself a time and position dependent random function. We investigate how inhomogeneities and fluctuations of the diffusion coefficient affect the transport using a perturbative approach, with a special attention to the time scaling of the second moment. We show that correlated disorder can lead to anomalous transport and superdiffusion.
Cite
@article{arxiv.1408.0621,
title = {Transient superdiffusion in correlated diffusive media},
author = {Jacopo Bertolotti},
journal= {arXiv preprint arXiv:1408.0621},
year = {2014}
}
Comments
4 pages, 4 figures