Violation of the fluctuation-dissipation theorem for fast superdiffusion
Statistical Mechanics
2009-11-10 v1
Abstract
We study anomalous diffusion for one-dimensional systems described by a generalized Langevin equation. We show that superdiffusion can be classified in normal superdiffusion and fast superdiffusion. For fast superdiffusion, we prove that the Fluctuation-Dissipation Theorem does not hold, which induces an effective temperature in the system. This effective temperature is a signature of metastability found in many complex system such as Spin-Glass and granular material.
Cite
@article{arxiv.cond-mat/0304285,
title = {Violation of the fluctuation-dissipation theorem for fast superdiffusion},
author = {Ismael V. L. Costa and Rafael Morgado and Marcos V. B. T. Lima and Fernando A. Oliveira},
journal= {arXiv preprint arXiv:cond-mat/0304285},
year = {2009}
}
Comments
5 pages and 2 figures