Mixtures of Bose gases confined in concentrically coupled annular traps

Francesc Malet Giralt

Mathematical Physics

Friday, 5 March 2010, 14:00
Matfys library

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 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 analyzed.