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- W1978657406 abstract "AbstractA relaxation method is employed to study a rotating dense Bose-Einstein conden-sate beyond Thomas-Fermi approximation. We use a slave-boson model to describethe strongly interacting condensate and derive a generalized non-linear Schr¨odingerequation with kinetic term for the rotating condensate. In comparison with previ-ous calculations, based on Thomas-Fermi approximation, significant improvementsare found in regions, where the condensate in a trap potential is not smooth. Thecritical angular velocity of the vortex formation is higher than in the Thomas-Fermiprediction. 1 Introduction The appearance of vortices in a rotating dilute Bose-Einstein condensate (BEC) is a phe-nomenon that is intrinsically related to the existence of superfluidity [1, 2]. This has beenintensively studied [3, 4] after the achievement of BEC in alkali-metal gases [5, 6]. Thevortex formation can be understood as a local suppression of the BEC due to rotation. Ithappens when the angular velocity Ω exceeds a critical value Ω" @default.
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- W1978657406 date "2008-07-31" @default.
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- W1978657406 title "Formation of vortices in a dense Bose-Einstein condensate" @default.
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- W1978657406 doi "https://doi.org/10.1103/physreva.78.013642" @default.
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