Interaction-induced phase fluctuations in a guided atom laser
- 29 January 2003
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 67 (1) , 011603
- https://doi.org/10.1103/physreva.67.011603
Abstract
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.Keywords
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