Phase Fluctuations in Atomic Bose Gases

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

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)4
Number of pages1
JournalPhysical Review Letters
Issue number7
Publication statusPublished - 2002
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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