Phys. Rev. Lett. 91, 010406 (2003) [4 pages]Measurement of the Spatial Correlation Function of Phase Fluctuating Bose-Einstein CondensatesReceived 17 March 2003; published 3 July 2003 We measure the intensity correlation function of two interfering spatially displaced copies of phase fluctuating Bose-Einstein condensates. It is shown that this corresponds to a measurement of the phase correlation properties of the initial condensate. Analogous to the method used in the stellar interferometer experiment of Hanbury Brown and Twiss, we use spatial intensity correlations to determine the phase coherence lengths of elongated condensates. We find good agreement with our prediction of the correlation function and confirm the expected coherence length. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.010406
DOI:
10.1103/PhysRevLett.91.010406
PACS:
03.75.Hh, 03.75.Nt, 39.20.+q
|
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.