%0 Journal Article %1 Bijlsma1995Variational %A Bijlsma, M. %A Stoof, H. T. C. %D 1995 %K atomic\_gases, bose\_gas, cold\_atoms %T Variational Approach to the Dilute Bose Gas %U http://arxiv.org/abs/cond-mat/9507134 %X We study the weakly-interacting Bose gas in both two and three dimensions using a variational approach. In particular we construct the thermodynamic potential of the gas to within ladder approximation and find by minimization an accurate mean-field description of the dilute Bose gas. Using spin-polarized atomic hydrogen as a specific example, we obtain an improved description of the Bose-Einstein condensed phase in three dimensions and a signature of a phase transition in two dimensions. The latter cannot be found by straightforward application of perturbation theory around the ideal Bose gas.

@article{Bijlsma1995Variational, abstract = {We study the weakly-interacting Bose gas in both two and three dimensions using a variational approach. In particular we construct the thermodynamic potential of the gas to within ladder approximation and find by minimization an accurate mean-field description of the dilute Bose gas. Using spin-polarized atomic hydrogen as a specific example, we obtain an improved description of the Bose-Einstein condensed phase in three dimensions and a signature of a phase transition in two dimensions. The latter cannot be found by straightforward application of perturbation theory around the ideal Bose gas.}, added-at = {2014-01-09T15:14:33.000+0100}, archiveprefix = {arXiv}, author = {Bijlsma, M. and Stoof, H. T. C.}, biburl = {https://www.bibsonomy.org/bibtex/2ccc635c7b0e2e439b906744d1acec20e/jaspervh}, citeulike-article-id = {10483345}, citeulike-linkout-0 = {http://arxiv.org/abs/cond-mat/9507134}, citeulike-linkout-1 = {http://arxiv.org/pdf/cond-mat/9507134}, day = 31, eprint = {cond-mat/9507134}, interhash = {e69a23b1710230e5bafa07521edea3a5}, intrahash = {ccc635c7b0e2e439b906744d1acec20e}, keywords = {atomic\_gases, bose\_gas, cold\_atoms}, month = jul, posted-at = {2012-03-21 14:31:10}, priority = {2}, timestamp = {2014-01-09T15:14:33.000+0100}, title = {Variational Approach to the Dilute Bose Gas}, url = {http://arxiv.org/abs/cond-mat/9507134}, year = 1995 }