Pressure of fluids and solids composed of particles interacting with a short-range repulsive potential

被引：9

作者：

Hess, S

Kröger, M

机构：

[1] Tech Univ Berlin, Inst Theoret Phys, D-10623 Berlin, Germany

[2] Swiss Fed Inst Technol, Dept Mat, CH-8092 Zurich, Switzerland

来源：

PHYSICAL REVIEW E | 2000年 / 61卷 / 04期

关键词：

D O I：

10.1103/PhysRevE.61.4629

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A simple short range repulsive potential (SR), with an even smoother cut off than the Weeks-Chandler-Andersen (WCA)-Lennard-Jones potential, yields practically the same pressure, both in the fluid state and for the fee solid, when the potential parameters are chosen such that the forces are the same at the distance where the the two potential curves are equal to k(B)T. The comparison of the pressure for the SR and the WCA systems is based on molecular dynamics computer simulations. The fluid branch of the equation of state is rather well described by a modified Carnahan-Starling expression.

引用

页码：4629 / 4631

页数：3

共 19 条

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