One-dimensional motion in a biased random medium: Random potential versus random force

C. Aslangul, N. Pottier and D. Saint-James

Physica A: Statistical Mechanics and its Applications, 1991, vol. 174, issue 2, 272-282

Abstract: The one-dimensional motion of a particle in a biased random medium is studied in both cases of a random potential and of a random force. The correlations are not the same in both cases, and this is at the source of entirely different drift and diffusion behaviours. As a result, drift and diffusion are always normal in the presence of a random potential while anomalous motion and dynamical phase transitions may appear in the presence of a random force.

Date: 1991
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:174:y:1991:i:2:p:272-282

DOI: 10.1016/0378-4371(91)90334-9

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