Vortices in a Rotating Spin-Orbit-Coupled Bose–Einstein Condensate under Extreme Elongation in a Harmonic Plus Quartic Trap  

作　　者：陈光平 陈思霖 谢征微 张晓斐 张首刚 

机构地区：[1]Key Laboratory of Time and Frequency Primary Standards, National Time Service Center,Chinese Academy of Sciences [2]University of Chinese Academy of Sciences [3]College of Physics and Mech-tronic Engineering, Sichuan University of Arts and Science [4]School of Science, Changchun University of Science and Technology [5]College of Physics and Electronic Engineering, Sichuan Normal University

出　　处：《Communications in Theoretical Physics》2016年第7期53-58,共6页理论物理通讯（英文版）

基　　金：Supported by the National Natural Science Fund for National Major Scientific Research Equipment and Equipment Special Fund under Grant No.61025023;the NMFSEID under Grant No.61127901;the Key Project Fund of the CAS“Light of West China”Program under Grant No.2012ZD02;the Youth Innovation Promotion Association of CAS under Grant No.2015334;the Sichuan Province Education Department key Natural Science Fund under Grant Nos.13ZA0149 and 16ZA0355

摘　　要：We consider the ground-state properties of a rotating spin-orbit-coupled Bose–Einstein condensate under extreme elongation in a harmonic plus quartic potential. The effects of spin-orbit coupling and rotation on the groundstate vortex structures are investigated. In the absence of spin-orbit coupling, new nucleated vortices gradually form vortex lines and annular vortex structures with the increase of the rotation frequency. In the presence of spin-orbit coupling, part of the vortices arrange in a line and form a stable vortex chain, and the remanent vortices coexist in pairs aside such vortex chain. More specially, the remanent vortices of each component repel each other and form vortex pair for isotropic spin-orbit coupling, while attract each other and locate in the same positions for anisotropic spin-orbit coupling.

关 键 词：Bose–Einstein condensate spin-orbit coupling vortex chain 

分 类 号：O469[理学—凝聚态物理]