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

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

1998-05-25

arxiv.org/abs/cond-mat/9805327v1

Physics

Condensed Matter

12 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.81.1543

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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