期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 49, 期 23, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/49/23/235203
关键词
Yukawa liquids; dusty plasma; molecular dynamics simulation
资金
- National Natural Science Foundation of China [11505124]
- 1000 Youth Talents Plan
- Soochow University
- NSF
- Department of Energy
- Division Of Physics
- Direct For Mathematical & Physical Scien [1162645] Funding Source: National Science Foundation
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.
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