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中国物理学会期刊

自旋轨道耦合的23Na自旋-1玻色-爱因斯坦凝聚体中的涡旋斑图的研究

CSTR: 32037.14.aps.62.200306

Vortex pattern in spin-orbit coupled spin-1 Bose-Einstein condensate of 23Na

CSTR: 32037.14.aps.62.200306
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  • 利用阻尼映射Gross-Pitaevkii方程, 研究了二维体系中自旋轨道耦合的 23Na自旋-1 玻色-爱因斯坦凝聚体中的涡旋斑图, 探索自旋轨道耦合强度对涡旋斑图的影响. 研究发现, 较弱的自旋轨道耦合就可以完全破坏不考虑自旋轨道耦合情况下出现的周期性涡旋晶格; 在自旋轨道耦合较强的情况下, 各自旋态的涡旋易形成涡旋组, 它们绕凝聚体中心形成花瓣状涡旋斑图.

     

    Using the damped projecting Gross-Pitaevkii align, we study the vortex pattern in the two-dimensional spin-orbit coupled spin-1 Bose-Einstein condensate of 23Na. We concentrate on the influence of spin-orbit coupling on the vortex pattern and find that the periodic vortex lattice which would occur without any spin-orbit coupling, can be completely destroyed although the strength of spin-orbit coupling is not very strong. With a strong spin-orbit coupling, vortexes in the condensate of each spin state tend to form some vortex groups and then they create a flower-like lattice around the center.

     

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