Interaction induced phase fluctuations in a guided atom laser

Details Interaction induced phase fluctuations in a guided atom laser Interaction induced phase fluctuations in a guided atom laser

2002-11-12

arxiv.org/abs/cond-mat/0211238v1

Phys. Rev. A 67, 011603 (2003)

Physics

Condensed Matter

5 pages, 2 figures

Scientific paper

10.1103/PhysRevA.67.011603

In this paper, we determine the magnitude of phase fluctuations caused by atom-atom interaction in a one-dimensional beam of bosonic atoms. We imagine that the beam is created with a large coherence length, and that interactions only act in a specific section of the beam, where the atomic density is high enough to validate a Bogoliubov treatment. The magnitude and coherence length of the ensuing phase fluctuations in the beam after the interaction zone are determined.

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