Condensation and interaction range in harmonic boson traps: a variational approach
Condensed Matter
2009-10-31 v1
Abstract
For a gas of N bosons interacting through a two-body Morse potential a variational bound of the free energy of a confined system is obtained. The calculation method is based on the Feynman-Kac functional projected on the symmetric representation. Within the harmonic approximation a variational estimate of the effect of the interaction range on the existence of many-particle bound states, and on the N-T phase diagram is obtained.
Cite
@article{arxiv.cond-mat/9911210,
title = {Condensation and interaction range in harmonic boson traps: a variational approach},
author = {J. Tempere and F. Brosens and L. F. Lemmens and J. T. Devreese},
journal= {arXiv preprint arXiv:cond-mat/9911210},
year = {2009}
}
Comments
14 pages+4 figures, submitted to phys.rev.A