Non equilibrium inertial dynamics of colloidal systems

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dc.creatorUmberto, Marini Bettolo Marconi
dc.creatorPedro, Tarazona
dc.date2006-05-03
dc.date.accessioned2026-07-07T07:08:44Z
dc.date.available2026-07-07T07:08:44Z
dc.descriptionWe consider the properties of a one dimensional fluid of brownian inertial hard-core particles, whose microscopic dynamics is partially damped by a heat-bath. Direct interactions among the particles are represented as binary, instantaneous elastic collisions. Collisions with the heath bath are accounted for by a Fokker-Planck collision operator, whereas direct collisions among the particles are treated by a well known method of kinetic theory, the Revised Enskog Theory. By means of a time multiple time-scale method we derive the evolution equation for the average density. Remarkably, for large values of the friction parameter and/or of the mass of the particles we obtain the same equation as the one derived within the dynamic density functional theory (DDF). In addition, at moderate values of the friction constant, the present method allows to study the inertial effects not accounted for by DDF method. Finally, a numerical test of these corrections is provided.
dc.description13 pages+ 3 Postscript figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0605094
dc.identifierhttp://arxiv.org/abs/cond-mat/0605094
dc.identifierJ. Chem. Phys., 124 (2006) 164901
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/110816
dc.subjectStatistical Mechanics
dc.subjectSoft Condensed Matter
dc.titleNon equilibrium inertial dynamics of colloidal systems
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