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29 March 2024
 
  » arxiv » cond-mat/0503213

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Statistical field theory for simple fluids: the collective variables representation
Jean-Michel Caillol ; Oksana Patsahan ; Ihor Mryglod ;
Date 9 Mar 2005
Subject Statistical Mechanics | cond-mat.stat-mech
AffiliationLPT), Oksana Patsahan (ICMP), Ihor Mryglod (ICMP
AbstractAn alternative representation of an exact statistical field theory for simple fluids, based on the method of collective variables, is presented. The results obtained are examined from the point of another version of theory that was developed recently by performing a Hubbard-Stratonovich transformation of the configurational Boltzmann factor [J.-M. Caillol, Mol. Phys. 101 (2003) 1617]. The analytical expressions for the pressure and the free energy are derived in two-loop approximation for both versions of theory and it is shown that they are indeed equivalent.
Source arXiv, cond-mat/0503213
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