Dynamics of a vortex dipole across a magnetic phase boundary in a spinor Bose-Einstein condensate
Dynamics of a vortex dipole across a magnetic phase boundary in a spinor Bose-Einstein condensate
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DOI：
10.1103/physreva.90.053632
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发表时间：
2014-10
影响因子：
2.9
通讯作者：
T. Kaneda;H. Saito
中科院分区：
文献类型：
--
作者：
T. Kaneda;H. Saito
研究了自旋为1的玻色-爱因斯坦凝聚体中磁相空间分布的涡旋偶极子动力学。当一个涡旋偶极从铁磁相运动到极性相时，或者相反，它会穿过相边界并转变成各种自旋涡旋偶极中的一种，例如蛙跳铁磁芯涡旋偶极和半量子涡旋偶极。讨论了自旋波函数在相边界上的拓扑关系。
Dynamics of a vortex dipole in a spin-1 Bose-Einstein condensate in which magnetic phases are spatially distributed is investigated. When a vortex dipole travels from the ferromagnetic phase to the polar phase, or vice versa, it penetrates the phase boundary and transforms into one of the various spin vortex dipoles, such as a leapfrogging ferromagnetic-core vortex dipole and a half-quantum vortex dipole. Topological connections of spin wave functions across the phase boundary are discussed.