Formation of vortices in a dense Bose-Einstein condensate

Details Formation of vortices in a dense Bose-Einstein condensate Formation of vortices in a dense Bose-Einstein condensate

2008-06-25

arxiv.org/abs/0806.4106v1

Phys. Rev. A 78, 013642 (2008)

Physics

Condensed Matter

Other Condensed Matter

10 pages, 4 figures

Scientific paper

10.1103/PhysRevA.78.013642

A relaxation method is employed to study a rotating dense Bose-Einstein condensate beyond Thomas-Fermi approximation. We use a slave-boson model to describe the strongly interacting condensate and derive a generalized non-linear Schr\"odinger equation with kinetic term for the rotating condensate. In comparison with previous calculations, based on Thomas-Fermi approximation, significant improvements are found in regions, where the condensate in a trap potential is not smooth. The critical angular velocity of the vortex formation is higher than in the Thomas-Fermi prediction.

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