Self-Diffusion in Simple Liquids as a Random Walk Process

被引:19
|
作者
Khrapak, Sergey A. [1 ]
机构
[1] Russian Acad Sci, Joint Inst High Temp, Moscow 125412, Russia
来源
MOLECULES | 2021年 / 26卷 / 24期
关键词
self-diffusion in liquids; transport properties of liquids; random walk process; viscosity of liquids; one-component plasma; collective motion in liquids; STATISTICAL-MECHANICS; MONTE-CARLO; PLASMAS; COULOMB; ENERGY;
D O I
10.3390/molecules26247499
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
It is demonstrated that self-diffusion in dense liquids can be considered a random walk process; its characteristic length and time scales are identified. This represents an alternative to the often assumed hopping mechanism of diffusion in the liquid state. The approach is illustrated using the one-component plasma model.
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页数:8
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