Transition to the giant vortex state for a Bose-Einstein condensate in a rotating anharmonic trap
نویسنده
چکیده
We study the fast rotation limit for a Bose-Einstein condensate in a quadratic plus quartic confining potential within the framework of the two dimensional Gross-Pitaevskii energy functional. As the rotation speed tends to infinity, the condensate undergoes a phase transition to the socalled giant vortex state: an annulus with pure irrotational flow encircling a central low-density hole around which there is a macroscopic phase circulation.
منابع مشابه
The giant vortex state for a Bose-Einstein condensate in a rotating anharmonic trap : extreme rotation regimes
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تاریخ انتشار 2008