Giant hole and circular superflow in a fast rotating Bose-Einstein condensate
arXiv:cond-mat/0202223 · doi:10.1103/PhysRevA.66.053606
Abstract
A fast rotating Bose-Einstein condensate confined in a quadratic-plus-quartic potential is found to dynamically generate a "giant vortex" that absorbs all phase singularities into a central low density hole, thereby sustaining a quasi-one-dimensional circular superflow at a supersonic speed.
4 pages, 4 figures, revtex4