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

Description : 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 pre...
Language(s) : English
Subject(s) : [PHYS:COND:CM_SM] Physics/Condensed Matter/Statistical Mechanics , Bose-Einstein Condensates , 1D , phase fluctuations , momentum distribution , Bragg diffraction
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Publication Date(s) : 2003-09-10