Correlated Gaussian method for dilute bosonic systems
Atomic Physics
2009-11-11 v1 Other Condensed Matter
Abstract
The weakly interacting trapped Bose gases have been customarily described using the mean-field approximation in the form of the Gross-Pitaevskii equation. The mean-field approximation, however, has certain limitations, in particular it can not describe correlations between particles. We introduce here an alternative variational approach, based on the correlated Gaussian method, which in its simplest form is as fast and simple as the mean-field approximation, but which allows successive improvements of the trial wave-function by including correlations between particles.
Cite
@article{arxiv.physics/0504135,
title = {Correlated Gaussian method for dilute bosonic systems},
author = {H. H. Sorensen and D. V. Fedorov and A. S. Jensen},
journal= {arXiv preprint arXiv:physics/0504135},
year = {2009}
}
Comments
9 pages, Workshop on Nuclei and Mesoscopic Physics, NSCL MSU, 2004