Liquid-vapour transition of the long range Yukawa fluid

Two liquid state theories, the self-consistent Ornstein-Zernike equation (SCOZA) and the hierarchical reference theory (HRT) are shown, by comparison with Monte Carlo simulations, to perform extremely well in predicting the liquid-vapour coexistence of the hard-core Yukawa (HCY) fluid when the inter...

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Bibliographic Details
Published inMolecular physics Vol. 105; no. 13-14; pp. 1813 - 1826
Main Authors Caillol, Jean-Michel, Verso, Federica Lo, Schöll-Paschinger, Elisabeth, Weis, Jean-Jacques
Format Journal Article
LanguageEnglish
Published Taylor & Francis Group 10.07.2007
Taylor & Francis
Subjects
Critical phenomena
HRT
Monte Carlo Simulation
SCOZA
Yukawa potential
Physical Sciences
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Summary:Two liquid state theories, the self-consistent Ornstein-Zernike equation (SCOZA) and the hierarchical reference theory (HRT) are shown, by comparison with Monte Carlo simulations, to perform extremely well in predicting the liquid-vapour coexistence of the hard-core Yukawa (HCY) fluid when the interaction is long range. The long range of the potential is treated in the simulations using both an Ewald sum and hyperspherical boundary conditions. In addition, we present an analytical optimized mean field theory which is exact in the limit of an infinitely long-range interaction. The work extends a previous one by C. Caccamo, G. Pellicane, D. Costa, D. Pini, and G. Stell, Phys. Rev. E 60, 5533 (1999) for short-range interactions.
ISSN:0026-8976
1362-3028
DOI:10.1080/00268970701420524