On the kinetic theory of Brownian motion

V.V. Belyi and Yu.L. Klimontovich

Physica A: Statistical Mechanics and its Applications, 1979, vol. 97, issue 3, 577-588

Abstract: The influence of fluctuations on the kinetic processes of Brownian motion is investigated. We consider fluctuations for which the correlation time is comparable with the relaxation time of the distribution function. Taking such large scale fluctuations into account is shown to lead to a change of the diffusion coefficient and to the appearance of additional correlations in the motions of Brownian particles. An expression is obtained for the correlation function of a Langevin source in the diffusion equation taking into account the contribution of large scale fluctuations.

Date: 1979
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:97:y:1979:i:3:p:577-588

DOI: 10.1016/0378-4371(79)90097-9

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