Split vortices in optically coupled Bose-Einstein condensates
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We study a rotating two-component Bose-Einstein condensate in which an optically induced Josephson coupling allows for population transfer between the two species. In a regime where separation of species is favored, the ground state of the rotating system displays domain walls with velocity fields normal to them. Such a configuration looks like a vortex split into two halves, with atoms circulating around the vortex and changing their internal state in a continuous way.
4 EPS pictures, 4 pages; Some errata have been corrected and thep resentation has been slightly revised
4 EPS pictures, 4 pages; Some errata have been corrected and thep resentation has been slightly revised