Mixtures of Bose gases confined in concentrically coupled annular traps

Details Mixtures of Bose gases confined in concentrically coupled annular traps Mixtures of Bose gases confined in concentrically coupled annular traps

2009-11-12

arxiv.org/abs/0911.2355v2

Phys. Rev. A 81 (2010) 013630

Physics

Condensed Matter

Quantum Gases

6 pages, 5 figures, minor revisions

Scientific paper

A two-component Bose-Einstein condensate confined in an axially-symmetric potential with two local minima, resembling two concentric annular traps, is investigated. The system shows a number of quantum phase transitions that result from the competition between phase coexistence, and radial/azimuthal phase separation. The ground-state phase diagram, as well as the rotational properties, including the (meta)stability of currents in this system, are analysed.

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