MEMORY FUNCTION-APPROACH TO THE DYNAMICS OF INTERACTING BROWNIAN PARTICLES

被引：59
作者：
DIETERICH, W
PESCHEL, I
机构：
[1] UNIV STUTTGART,INST THEORET PHYS,D-7000 STUTTGART 80,FED REP GER
[2] FREE UNIV BERLIN,INST THEORIE KONDENSIERTEN MAT,D-1000 BERLIN 33,FED REP GER
来源：
PHYSICA A | 1979年 / 95卷 / 02期
关键词：
D O I：
10.1016/0378-4371(79)90052-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 how the frequency-dependent conductivity is affected by the correlated motion of particles. © 1979.
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页码：208 / 224
页数：17
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