Phys. Rev. Lett. 89, 100601 (2002) - Relation between Anomalous and Normal Diffusion in Systems with Memory

Relation between Anomalous and Normal Diffusion in Systems with Memory

Rafael Morgado, Fernando A. Oliveira, G. George Batrouni, and Alex Hansen

Phys. Rev. Lett. 89, 100601 – Published 14 August 2002

Abstract

We present a simple criterion based on the Einstein relation for determining whether diffusion in systems governed by a generalized Langevin equation with long-range memory is normal, superdiffusive, or subdiffusive. We support our analysis with numerical simulations.

Received 7 November 2001

DOI:https://doi.org/10.1103/PhysRevLett.89.100601

©2002 American Physical Society

Authors & Affiliations

Rafael Morgado and Fernando A. Oliveira

International Center of Condensed Matter Physics and Instituto de Fisica, Universidade de Brasília, CP 04515, 70919-970 Brasília DF, Brazil

G. George Batrouni

Institut Non-Linéaire de Nice, UMR CNRS 6618, Université de Nice-Sophia Antipolis, 1361 Rute des Lucioles, F-06560 Valbonne, France

Department of Physics, Norwegian University of Science and Technology, N-7491 Trondheim, Norway

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Issue

Vol. 89, Iss. 10 — 2 September 2002

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