Crossover from dispersive to regular transport in biased maps

E. Barkai, J. Klafter

Research output: Contribution to journalArticlepeer-review

Abstract

We investigate the influence of a weak uniform field ε on chaotic maps which in the absence of the field generate subdiffusion. The field breaks the symmetry of the maps and leads to a net drift. A crossover from an anomalous type of motion, valid at short times, to a normal behavior, at long times is found for any finite field. The diffusion coefficient behaves as D(ε)∼εγwhere γ depends on a single parameter of the map.

Original languageEnglish
Pages (from-to)2245-2248
Number of pages4
JournalPhysical Review Letters
Volume79
Issue number12
DOIs
StatePublished - 22 Sep 1997

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