Phase fluctuations in atomic Bose gases

J. O. Andersen; U. Al Khawaja; H. T. C Stoof

doi:10.1103/physrevlett.88.070407

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arXiv · cond-mat/0109143

Phase fluctuations in atomic Bose gases

J. O. Andersen·U. Al Khawaja·H. T. C Stoof

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Abstract

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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J. O. Andersen, U. Al Khawaja, H. T. C Stoof. 2002-01-24. Phase fluctuations in atomic Bose gases. https://doi.org/10.1103/physrevlett.88.070407

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