Phase coherence and ``fragmented'' Bose condensates

D. S. Rokhsar

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arXiv · cond-mat/9812260

Phase coherence and ``fragmented'' Bose condensates

D. S. Rokhsar

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Abstract

We show that a ``fragmented Bose condensate'' in which two or more distinct single-particle states are macroscopically occupied by the same species of boson is inherently unstable to the formation of a conventional Bose condensate whose macroscopically occupied state is a linear combination of the ``fragments'' with definite relative phases. A related analysis shows that a reproducible relative phase develops when two initially decoupled condensates are placed in contact.

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D. S. Rokhsar. 1998-12-15. Phase coherence and ``fragmented'' Bose condensates. https://arxiv.org/abs/cond-mat/9812260

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