Vortices in Bose-Einstein condensates confined in a multiply connected Laguerre-Gaussian optical trap

J. Tempere; J. T. Devreese; E. R. I. Abraham

doi:10.1103/physreva.64.023603

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Vortices in Bose-Einstein condensates confined in a multiply connected Laguerre-Gaussian optical trap

J. Tempere·J. T. Devreese·E. R. I. Abraham

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Abstract

The quantized vortex state is investigated in a Bose-Einstein condensate, confined in a multiply connected geometry formed by a Laguerre-Gaussian optical trap. Solving the Gross-Pitaevskii equation variationally, we show that the criterium for vortex stability is that the interatomic interaction strength must exceed a critical interaction strength. The time evolution of a freely expanding Laguerre-Gaussian condensate with a vortex is calculated, and used to derive the interference pattern of such a condensate overlapping with a parabolically trapped condensate.

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J. Tempere, J. T. Devreese, E. R. I. Abraham. 2001-01-02. Vortices in Bose-Einstein condensates confined in a multiply connected Laguerre-Gaussian optical trap. https://doi.org/10.1103/physreva.64.023603

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