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arXiv · 1712.09337

Three-dimensional vortex-bright solitons in a spin-orbit coupled spin-$1$ condensate

Sandeep Gautam·S. K. Adhikari
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Abstract

We demonstrate stable and metastable vortex-bright solitons in a three-dimensional spin-orbit-coupled three-component hyperfine spin-1 Bose-Einstein condensate (BEC) using numerical solution and variational approximation of a mean-field model. The spin-orbit coupling provides attraction to form vortex-bright solitons in both attractive and repulsive spinor BECs. The ground state of these vortex-bright solitons is axially symmetric for weak polar interaction. For a sufficiently strong ferromagnetic interaction, we observe the emergence of a fully asymmetric vortex-bright soliton as the ground state. We also numerically investigate moving solitons. The present mean-field model is not Galilean invariant, and we use a Galilean-transformed mean-field model for generating the moving solitons.

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Sandeep Gautam, S. K. Adhikari. 2017-12-23. Three-dimensional vortex-bright solitons in a spin-orbit coupled spin-$1$ condensate. https://doi.org/10.1103/physreva.97.013629

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