Phase Separation in two-Species Atomic Bose-Einstein Condensate with Interspecies Feshbach Resonance

Details Phase Separation in two-Species Atomic Bose-Einstein Condensate with Interspecies Feshbach Resonance Phase Separation in two-Species Atomic Bose-Einstein Condensate with Interspecies Feshbach Resonance

2008-08-30

arxiv.org/abs/0809.0040v2

Phys. Rev. A 78, 053612 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 3 figures

Scientific paper

10.1103/PhysRevA.78.053612

We consider a mixture of two-species atomic Bose-Einstein codensates coupled to a bound molecular state at zero temperature via interspecies Feshbach resonance. The interspecies Feshbach coupling precludes the possibility of doubly mixed phases while enables not only the pure molecular superfluid but also the pure atomic superfluids to exist as distinct phases. We show that this system is able to support a rich set of phase separations, including that between two distinct mixed atom-molecule phases. We pay particular attention to the effects of the Feschbach coupling and the particle collisions on the miscibility of this multi-component condensate system.

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