S-matrix poles and the second virial coefficient
Chemical Physics
2009-11-07 v1 Atomic and Molecular Clusters
Atomic Physics
Abstract
For cutoff potentials, a condition which is not a limitation for the calculation of physical systems, the S-matrix is meromorphic. We can express it in terms of its poles, and then calculate the quantum mechanical second virial coefficient of a neutral gas. Here, we take another look at this approach, and discuss the feasibility, attraction and problems of the method. Among concerns are the rate of convergence of the 'pole' expansion and the physical significance of the 'higher' poles.
Cite
@article{arxiv.physics/0105001,
title = {S-matrix poles and the second virial coefficient},
author = {A. Amaya-Tapia and S. Y. Larsen and J. Baxter and Monique Lassaut and Manuel Berrondo},
journal= {arXiv preprint arXiv:physics/0105001},
year = {2009}
}
Comments
20 pages, 8 tables, submitted to J. Mol. Phys