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Rabi-coupled Binary Bose-Einstein Condensates with Spatially Modulated Nonlinear Spin-Orbit Coupling

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Abstract

We study the ground-state phases of Rabi-coupled two-component Bose-Einstein condensates with rotation and spatially modulated nonlinear spin-orbit coupling. The spin-orbit coupling and Rabi coupling play important roles on the ground-state phases with the fixed rotation, however, they have the opposite effects on the generation of vortex. When the system without Rabi coupling, spin-orbit coupling can improve the generation of vortex. The vortex chain with regular pattern appears with strong spin-orbit coupling. Considering the Rabi coupling, the number of vortices is inhibited by the Rabi coupling with the fixed spin-orbit coupling and rotation strengths. The ground-state phase diagram spanned by the SOC strength and Rabi coupling with rotation is presented, the non-vortex phase, single-vortex phase and multi-vortex phase are classified. The spin textures of the ground-state phases are also discussed.

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Funding

This work is supported by the NSF of China under grant No. 11904242 and the NSF of Hebei province under Grant No. A2019210280.

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Authors and Affiliations

  1. Department of Mathematics and Physics, Shijiazhuang TieDao University, Shijiazhuang, 050043, China

    Jin-Cui Zhao, Chang-Da Li, Yue-Qing Li & Ji-Guo Wang

  2. Institute of Applied Physics, Shijiazhuang TieDao University, Shijiazhuang, 050043, China

    Jin-Cui Zhao, Chang-Da Li, Yue-Qing Li & Ji-Guo Wang

Authors
  1. Jin-Cui Zhao
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  2. Chang-Da Li
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  3. Yue-Qing Li
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  4. Ji-Guo Wang
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Correspondence to Ji-Guo Wang.

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Zhao, JC., Li, CD., Li, YQ. et al. Rabi-coupled Binary Bose-Einstein Condensates with Spatially Modulated Nonlinear Spin-Orbit Coupling. Int J Theor Phys 60, 3609–3617 (2021). https://doi.org/10.1007/s10773-021-04926-6

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  • DOI: https://doi.org/10.1007/s10773-021-04926-6

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