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Pressure of two-dimensional Yukawa liquids
Journal article   Peer reviewed

Pressure of two-dimensional Yukawa liquids

Yan Feng, J Goree, Bin Liu, Lei Wang and Wen-de Tian
Journal of physics. D, Applied physics, Vol.49(23), pp.235203-235208
05/06/2016
DOI: 10.1088/0022-3727/49/23/235203
url
https://www.osti.gov/biblio/1251483View
Open Access

Abstract

A simple analytic expression for the pressure of a two-dimensional Yukawa liquid is found by fitting results from a molecular dynamics simulation. The results verify that the pressure can be written as the sum of a potential term which is a simple multiple of the Coulomb potential energy at a distance of the Wigner-Seitz radius, and a kinetic term which is a multiple of the one for an ideal gas. Dimensionless coefficients for each of these terms are found empirically, by fitting. The resulting analytic expression, with its empirically determined coefficients, is plotted as isochores, or curves of constant area. These results should be applicable to monolayer dusty plasmas.
dusty plasma molecular dynamics simulation Yukawa liquids

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