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Vortex-line solitons in a periodically modulated Bose gas

J. -P. Martikainen·H. T. C. Stoof
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Abstract

We study the nonlinear excitations of a vortex-line in a Bose-Einstein condensate trapped in a one-dimensional optical lattice. We find that the classical Euler dynamics of the vortex results in a description of the vortex line in terms of a (discrete) one-dimensional Gross-Pitaevskii equation, which allows for both bright and gray soliton solutions. We discuss these solutions in detail and predict that it is possible to create vortex-line solitons with current experimental capabilities.

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J. -P. Martikainen, H. T. C. Stoof. 2004-08-18. Vortex-line solitons in a periodically modulated Bose gas. https://doi.org/10.1103/physrevlett.93.070402

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