Dielectric constant and density of states of the Drude-Lorentz model of a nonpolar fluid

被引：2
|
作者：
Cichocki, B
Felderhof, BU
机构：
[1] RHEIN WESTFAL TH AACHEN, INST THEORET PHYS A, D-52056 AACHEN, GERMANY
[2] UNIV WARSAW, INST THEORET PHYS, PL-00618 WARSAW, POLAND
来源：
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 1997年 / 241卷 / 1-2期
关键词：
nonpolar fluids; dielectric constant; density of states; Drude-Lorentz model;
D O I：
10.1016/S0378-4371(97)00053-8
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The absorption spectrum and density of states of the Drude-Lorentz model of a nonpolar fluid are studied on the basis of a statistical theory. In the dilute limit the shift and broadening uf the spectral line and of the density of states, due to dipolar interactions, are described by universal scaling functions, which have been evaluated in a self-consistent ring approximation. At higher densities the lineshapes are influenced by structural effects. These are taken into account in a pair approximation. The theory agrees well with simulation data for semidilute fluids.
引用
收藏
页码：6 / 11
页数：6
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