van der Waals revisited
| Autor(en): | Baerwinkel, Klaus Schnack, Juergen |
Stichwörter: | fermion-boson symmetry; GASES; kinetic theory; Physics; Physics, Multidisciplinary; quasi-particle methods; van der Waals model | Erscheinungsdatum: | 2008 | Herausgeber: | ELSEVIER SCIENCE BV | Journal: | PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | Volumen: | 387 | Ausgabe: | 18 | Startseite: | 4581 | Seitenende: | 4588 | Zusammenfassung: | 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. (C) 2008 Elsevier B.V. All rights reserved. |
ISSN: | 03784371 | DOI: | 10.1016/j.physa.2008.03.019 |
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