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Stable particlelike solitons with multiply-quantized vortex lines in Bose-Einstein condensates

J. Ruostekoski
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Abstract

We show that a multiply-quantized vortex line core can be energetically stable in a harmonically trapped two-component atomic Bose-Einstein condensate. The structure, in which the condensate component with the vortex line is surrounded by the second component forming a vortex ring, can be identified as a particlelike Skyrmion with a multiply-quantized winding number, and closely resembles cosmic vortons.

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J. Ruostekoski. 2004-08-17. Stable particlelike solitons with multiply-quantized vortex lines in Bose-Einstein condensates. https://doi.org/10.1103/physreva.70.041601

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