Abstract
This paper investigates two conjectures for calculating the density dependence of the density-scaling exponent γ of a single-component, pair-potential liquid with strong virial potential-energy correlations. The first conjecture gives an analytical expression for γ directly in terms of the pair potential. The second conjecture is a refined version of this involving the most likely nearest-neighbor distance determined from the pair-correlation function. The conjectures are tested by simulations of three systems, one of which is the standard Lennard-Jones liquid. While both expressions give qualitatively correct results, the second is more accurate.
Originalsprog | Engelsk |
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Artikelnummer | 124510 |
Tidsskrift | Journal of Chemical Physics |
Vol/bind | 140 |
Antal sider | 7 |
ISSN | 0021-9606 |
DOI | |
Status | Udgivet - 2014 |