Phase fluctuations in atomic Bose gases

Details Phase fluctuations in atomic Bose gases Phase fluctuations in atomic Bose gases

2001-09-07

arxiv.org/abs/cond-mat/0109143v2

Physics

Condensed Matter

4 pages. Title changed Major changes involve extension of theory to include trapped Bose gases. Deletion of reference to and c

Scientific paper

10.1103/PhysRevLett.88.070407

We improve on the Popov theory for partially Bose-Einstein condensed atomic gases by treating the phase fluctuations exactly. As a result, the theory becomes valid in arbitrary dimensions and is able to describe the low-temperature crossover between three, two and one-dimensional Bose gases, which is currently being explored experimentally. We consider both homogeneous and trapped Bose gases.

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