Bose-Einstein Condensation in a Trap: the Case of a Dense Condensate

Details Bose-Einstein Condensation in a Trap: the Case of a Dense Condensate Bose-Einstein Condensation in a Trap: the Case of a Dense Condensate

1997-01-07

arxiv.org/abs/cond-mat/9701038v1

Physics

Condensed Matter

Statistical Mechanics

6 pages RevTeX, 3 eps-figures

Scientific paper

10.1103/PhysRevA.56.1438

We consider the Bose-Einstein condensation of atoms in a trap where the density of particles is so high that the low density approach of Gross and Pitaevskii will not be applicable. For this purpose we use the slave boson representation which is valid for hard-core bosons at any density. This description leads to the same results as the Gross-Pitaevskii approach in the low density limit, but for higher densities, it predicts the depletion of the order parameter field condensate in the regions where the density of the atomic cloud is high.

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