Van Der Waals Revisited
Statistical Mechanics
2008-06-02 v2
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
Cite
@article{arxiv.0802.1793,
title = {Van Der Waals Revisited},
author = {K. Baerwinkel and J. Schnack},
journal= {arXiv preprint arXiv:0802.1793},
year = {2008}
}
Comments
11 pages, 4 figures, minor changes, accepted for publication in Physica A