Gibbs-Bogolyubov inequality and transport properties for strongly coupled Yukawa fluids
- 28 April 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 67 (4) , 046404
- https://doi.org/10.1103/physreve.67.046404
Abstract
The Gibbs-Bogolyubov inequality is used to establish a mapping between the Yukawa system and both the hard-sphere and the one-component reference systems. The transport coefficients of self-diffusion, shear viscosity, and thermal conductivity are computed for the Yukawa fluid using known properties of the reference systems. Comparisons are made with simulation results. For sufficiently strong screening, the hard-sphere reference system yields a lower upper bound of the Yukawa Helmholtz free energy and a better estimate of the Yukawa transport coefficients.Keywords
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