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arXiv · 1601.01541

Fractional-charge vortex in a spinor Bose-Einstein condensate

Sandeep Gautam·S. K. Adhikari
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Abstract

We classify all possible fractional charge vortices of charge less than unity in spin-1 and spin-2 polar and cyclic Bose-Einstein condensates (BECs) with zero magnetization. Statics and dynamics of these vortices in quasi-two-dimensional spinor BECs are studied employing accurate numerical solution and a Lagrange variational approximation. The results for density and collective-mode oscillation are illustrated using fractional-charge BEC vortex of $^{23}$Na and $^{87}$Rb atoms with realistic interaction and trapping potential parameters.

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Sandeep Gautam, S. K. Adhikari. 2016-01-07. Fractional-charge vortex in a spinor Bose-Einstein condensate. https://doi.org/10.1103/physreva.93.013630

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