The velocity autocorrelation function of nanoparticles in a hard-sphere molecular system

被引：8
|
作者：
Rudyak, VY [1 ]
Kharlamov, GV [1 ]
Belkin, AA [1 ]
机构：
[1] State Inst Architecture & Civil Engn, Novosibirsk, Russia
来源：
TECHNICAL PHYSICS LETTERS | 2000年 / 26卷 / 07期
基金：
俄罗斯基础研究基金会;
关键词：
Relaxation Time; Molecular Dynamic; Autocorrelation; Autocorrelation Function; Molecular System;
D O I：
10.1134/1.1262909
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The diffusion of nanoparticles in a dense molecular medium representing a fluid (liquid or gas) composed of hard absolutely elastic spheres was studied by the molecular dynamics method in a broad range of the medium density. It was established that relaxation of the velocity autocorrelation function of the particles is well described by a superposition of two exponents with different characteristic relaxation times. Dependence of the velocity autocorrelation function on the particle and radius and on the carrying fluid density was studied. (C) 2000 MAIK "Nauka/Interperiodica".
引用
收藏
页码：553 / 556
页数：4
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