Lennard-Jones系统中的气液交叉现象。

Gas-liquid crossover in the Lennard-Jones system.

作者信息

Khrapak S A

机构信息

Joint Institute for High Temperatures, Russian Academy of Sciences, 125412 Moscow, Russia.

出版信息

J Chem Phys. 2022 Mar 21;156(11):116101. doi: 10.1063/5.0085181.

DOI:10.1063/5.0085181

PMID:35317569

Abstract

It is demonstrated that the crossover between gas- and liquid-like regions on the phase diagram of the Lennard-Jones system occurs at a fixed value of the density divided by its value at the freezing point, ρ/ρ ≃ 0.35. This definition is consistent with other definitions proposed recently. As a result, a very simple practical expression for the gas-to-liquid crossover line emerges.

摘要

结果表明，在Lennard-Jones系统相图上，气态区域和液态区域之间的交叉发生在密度与其在凝固点的值之比的固定值处，即ρ/ρ ≃ 0.35。该定义与最近提出的其他定义一致。因此，出现了一个非常简单的气-液交叉线实用表达式。