van der Waals revisited

Klaus Bärwinkel and Jürgen Schnack

Physica A: Statistical Mechanics and its Applications, 2008, vol. 387, issue 18, 4581-4588

Abstract: The van-der-Waals version of the second virial coefficient is not far from being exact if the model parameters are appropriately chosen. It is shown how the van-der-Waals resemblance originates from the interplay of thermal averaging and superposition of scattering phase shift contributions. The derivation of the two parameters from the quantum virial coefficient reveals a fermion-boson symmetry in non-ideal quantum gases. Numerical details are worked out for the Helium quantum gases.

Keywords: van der Waals model; Kinetic theory; Quasi-particle methods; Fermion-boson symmetry (search for similar items in EconPapers)
Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:387:y:2008:i:18:p:4581-4588

DOI: 10.1016/j.physa.2008.03.019

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