Spin current in a spinor Bose–Einstein condensate induced by a gradient magnetic field  

作　　者：Li Tian Ningxuan Zheng Jun Jian Wenliang Liu Jizhou Wu Yuqing Li Yongming Fu Peng Li Vladimir Sovkov Jie Ma Liantuan Xiao Suotang Jia 田丽;郑宁宣;蹇君;刘文良;武寄洲;李玉清;付永明;李鹏;Vladimir Sovkov;马杰;肖连团;贾锁堂(State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China;Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China;School of Science,Key Laboratory of High Performance Scientific Computation,Xihua University,Chengdu 610039,China;St.Petersburg State University,7/9 Univrsieskaya nab.St.Petersburg 199034,Russia)

机构地区：[1]State Key Laboratory of Quantum Optics and Quantum Optics Devices,Institute of Laser Spectroscopy,Shanxi University,Taiyuan 030006,China [2]Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China [3]School of Science,Key Laboratory of High Performance Scientific Computation,Xihua University,Chengdu 610039,China [4]St.Petersburg State University,7/9 Univrsieskaya nab.St.Petersburg 199034,Russia

出　　处：《Chinese Physics B》2022年第11期207-210,共4页中国物理B（英文版）

基　　金：Project supported by the National Key R&D Program of China(Grant No.2017YFA0304203);the National Natural Science Foundation of China(Grant Nos.62020106014,62175140,61901249,92165106,12104276,and 62011530047);PCSIRT(Grant No.IRT17R70);the Educational Reform and Innovation Project of Higher Education in Shanxi Province,China(Grant Nos.Z20220001 and Z20220013);111 Project(Grant No.D18001);the Applied Basic Research Project of Shanxi Province(Grant Nos.201901D211191 and 201901D211188);the Shanxi 1331 KSC。

摘　　要：We develop a research of spin currents in a^(23)Na spinor Bose–Einstein condensate(BEC)by applying a magnetic field gradient.The spin current is successfully induced by the spin-dependent force arising from the magnetic field gradient.The dynamics of the spin components under the magnetic force is investigated.The study is promising to be extended to produce a longer spin-coherence and to enhance the sensitivity of the spin-mixing interferometry in a spinor BEC.

关 键 词：spinor Bose-Einstein condensate spin current 

分 类 号：O469[理学—凝聚态物理]