Memory function for collective diffusion of interacting Brownian particles
Institute of Theoretical Physics, Warsaw University
ul. Hoża 69, 00-681 Warsaw, Poland
Accepted: 26 April 2002
The problem of memory contribution to the collective diffusion coefficient of interacting Brownian particles is considered. A well-defined theoretical expression for this contribution, free of divergent integrals, is derived. Its value is then estimated for hard sphere suspensions numerically by means of extensive computer simulations.
PACS: 82.70.Dd – Colloids / 83.10.Mj – Molecular dynamics, Brownian dynamics / 05.60.-k – Transport processes
© EDP Sciences, 2002