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

2017/12/23 by Sandeep Gautam, Sadhan K. Adhikari, S. K. Adhikari · 56 citations
Physics and Astronomy · #Bose–Einstein condensate #Classical mechanics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Galilean #Mechanics #Metastability #Nonlinear system #Physics #Physics of Superconductivity and Magnetism #Quantum electrodynamics #Quantum mechanics #Soliton #Spin (aerodynamics) #Spinor #Strong Light-Matter Interactions #Vortex #cond-mat.quant-gas #nlin.PS

paper · pdf · doi:10.1103/physreva.97.013629

published in Physical Review A 97(1) (American Physical Society) · arXiv admin note: text overlap with arXiv:1612.03264

arxiv created 2017/12/23 · openalex publication_date 2018/01/25 · arxiv updated 2019/08/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

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.

Citations

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