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Communication Dans Un Congrès Année : 2003

Momentum Spectroscopy of Phase Fluctuations of an Elongated Bose-Einstein Condensate

Résumé

We have measured the momentum distribution of an elongated BEC (aspect ratio of 152), for temperatures below the critical temperature. The corresponding coherence length is significantly smaller than the condensate length in a wide range of temperature, in quantitative agreement with theoretical predictions. The Lorentzian shape of the momentum spectrum supports the image of a phase fluctuating quasicondensate.
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Dates et versions

hal-00000592 , version 1 (10-09-2003)

Identifiants

Citer

Alain Aspect, Simon Richard, Fabrice Gerbier, Mathilde Hugbart, Jocelyn A. Retter, et al.. Momentum Spectroscopy of Phase Fluctuations of an Elongated Bose-Einstein Condensate. Proceedings of the International Conference on Laser Spectroscopy (ICOLS 03), Jul 2003, Cairns, Australia. ⟨hal-00000592⟩
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