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Memory function approach to the dynamics of interacting Brownian particles

โœ Scribed by W. Dieterich; I. Peschel

Publisher
Elsevier Science
Year
1979
Tongue
English
Weight
708 KB
Volume
95
Category
Article
ISSN
0378-4371

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โœฆ Synopsis

We investigate some of the dynamic properties of diffusing particles described by a many-body Smoluchowski equation. The dynamic structure factor is expressed in terms of a memory function which is evaluated in the cases of i) weak interaction and ii) low particle density, but arbitrary interaction. A one-dimensional system with a hard-core pair potential is treated explicitly. Furthermore, by including a periodic single-particle potential, a model is obtained which has relevance to superionic conductors. For this case we discuss bow the frequencydependent conductivity is affected by the correlated motion of particles.

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