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Molecular Physics
An International Journal at the Interface Between Chemistry and Physics
Volume 101, 2003 - Issue 11
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Original Articles

Statistical field theory for simple fluids: mean field and Gaussian approximations

J.-M. CAILLOL Université de Paris Sud, LPT-CNRS (UMR 8627), Bat. 210, F-91405, Orsay Cedex, France
Pages 1617-1634 | Received 02 Oct 2002, Accepted 12 Nov 2002, Published online: 18 Nov 2009
 
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Abstract

We present an exact field theoretical representation of the statistical mechanics of simple classical liquids with short-range pairwise additive interactions. The action of the field theory is obtained by performing a Hubbard-Stratonovich transformation of the configurational Boltzmann factor. The mean field and Gaussian approximations of the theory are derived and applications to the liquid-vapour transition considered.

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