Dynamics of Ring Dark Solitons and the Following Vortices in Spin-1 Bose–Einstein Condensates  

作　　者：钟毓 Houria Triki 周勤 Yu Zhong;Houria Triki;Qin Zhou(Research Group of Nonlinear Optical Science and Technology,Research Center of Nonlinear Science,School of Mathematical and Physical Sciences,Wuhan Textile University,Wuhan 430200,China;Radiation Physics Laboratory,Department of Physics,Faculty of Sciences,Badji Mokhtar University,P.O.Box 12,23000 Annaba,Algeria;State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan 430200,China)

机构地区：[1]Research Group of Nonlinear Optical Science and Technology,Research Center of Nonlinear Science,School of Mathematical and Physical Sciences,Wuhan Textile University,Wuhan 430200,China [2]Radiation Physics Laboratory,Department of Physics,Faculty of Sciences,Badji Mokhtar University,P.O.Box 12,23000 Annaba,Algeria [3]State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan 430200,China

出　　处：《Chinese Physics Letters》2024年第7期18-26,共9页中国物理快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos.12261131495,11975172,and 12381240286)。

摘　　要：This work focuses on the evolution behaviors of ring dark solitons(RDSs) and the following vortices after the collapses of RDSs in spin-1 Bose–Einstein condensates. We find that the weighted average of the initial depths of three components determines the number and motion trajectories of vortex dipoles. For the weighted average of the initial depths below the critical depth, two vortex dipoles form and start moving along the horizontal axis.For the weighted average depth above the critical depth, two or four vortex dipoles form, and all start moving along the vertical axis. For the RDS with weighted average depth at exactly the critical point, four vortex dipoles form, half of the vortex dipoles initiate movement vertically, and the other half initiate movement horizontally.Our conclusion is applicable to the two-component system studied in earlier research, indicating its universality.

关 键 词：VORTEX DIPOLE EINSTEIN 

分 类 号：O469[理学—凝聚态物理]