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Creation of coherence in Bose-Einstein condensates by atom detection

Peter Horak·Stephen M. Barnett
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Abstract

We investigate the creation of a relative phase between two Bose-Einstein condensates, initially in number states, by detection of atoms and show how the system approaches a coherent state. Two very distinct time scales are found: one for the creation of the interference is of the order of the detection time for a few single atoms and another, for the preparation of coherent states, of the order of the detection time for a significant fraction of the total number of atoms. Approximate analytic solutions are derived and compared with exact numerical results.

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Peter Horak, Stephen M. Barnett. 1999-03-05. Creation of coherence in Bose-Einstein condensates by atom detection. https://doi.org/10.1088/0953-4075%2F32%2F14%2F312

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