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Mouvement brownien dans une assemblée de bâtonnets minces dans la phase isotrope

Authors
Journal
Physica A Statistical Mechanics and its Applications
0378-4371
Publisher
Elsevier
Volume
82
Issue
2
Identifiers
DOI: 10.1016/0378-4371(75)90047-3

Abstract

Abstract Using the kinetic methods of the Brussels School, we establish the equation (to the 2nd order in the perturbation) for the return to equilibrium of the one particle energy distribution function in an isotropic fluid made of thin slabs interacting through a P2-type potential. We show that for a very heavy brownian particle in a bath of identical light particles in equilibrium, this equation reduces to a Fokker-Planck equation, the coefficients of which are explicitly calculated. In the same manner we study the return to equilibrium of an angular excitation.

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