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Measurements of Relative Phase in Binary Mixtures of Bose-Einstein Condensates

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arxiv cond-mat/9805327 v1 pith:CMC3QSLV submitted 1998-05-25 cond-mat

Measurements of Relative Phase in Binary Mixtures of Bose-Einstein Condensates

D.S. Hall , M.R. Matthews , C.E. Wieman , E.A. Cornell This is my paper
classification cond-mat
keywords phaserelativecondensatesaccumulatedbose-einsteincondensatedifferencepulse
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We have measured the relative phase of two Bose-Einstein condensates (BEC) using a time-domain separated-oscillatory-field condensate interferometer. A single two-photon coupling pulse prepares the double condensate system with a well-defined relative phase; at a later time, a second pulse reads out the phase difference accumulated between the two condensates. We find that the accumulated phase difference reproduces from realization to realization of the experiment, even after the individual components have spatially separated and their relative center-of-mass motion has damped.

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