Spin-orbital angular momentum coupling in Bose-Einstein condensate and its spin dynamics

被引：0
|
作者：
Ng, Eng Boon [1 ]
Ooi, C. H. Raymond [1 ]
机构：
[1] Univ Malaya, Dept Phys, Kuala Lumpur 50603, Malaysia
来源：
RESULTS IN PHYSICS | 2023年 / 52卷
关键词：
Bose-Einstein condensates; Artificial gauge field;
D O I：
10.1016/j.rinp.2023.106870
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We examine the use of Laguerre-Gaussian (LG) laser beams in the tripod scheme to create the coupling between spin and orbital angular momentum in a Bose-Einstein condensate (BEC) confined by a harmonic trap. We derive and solve the Gross-Pitaevskii equation numerically to obtain the density distribution of the BEC. Orbital angular momentum from the LG beam is transferred to the BEC, inducing the formation of a giant vortex at the BEC's centre. The macroscopic flow of spinor BEC around the vortex leads to a persistent spin current in the BEC.
引用
收藏
页数：8
相关论文
共 50 条
  • [1] Spin-orbital-angular-momentum coupling in Bose-Einstein condensates
    Sun, Kuei
    Qu, Chunlei
    Zhang, Chuanwei
    [J]. PHYSICAL REVIEW A, 2015, 91 (06):
  • [2] Quench dynamics of a spin-orbital coupled Bose-Einstein condensate with nonlinear interactions
    He, Wang Huan
    He, Xia-Yao
    Li, Shuai
    Bo, Liu
    [J]. ACTA PHYSICA SINICA, 2023, 72 (10)
  • [3] Spin-orbit angular momentum coupling in a spin-1 Bose-Einstein condensate
    Chen, Li
    Pu, Han
    Zhang, Yunbo
    [J]. PHYSICAL REVIEW A, 2016, 93 (01)
  • [4] Phase transitions in a spin-orbital-angular-momentum coupled Bose-Einstein condensate
    [J]. Science Foundation in China, 2019, (02) : 12 - 12
  • [5] Quantum phases and the spectrum of collective modes in a spin-1 Bose-Einstein condensate with spin-orbital-angular-momentum coupling
    Banger, Paramjeet
    Rajat
    Roy, Arko
    Gautam, Sandeep
    [J]. PHYSICAL REVIEW A, 2023, 108 (04)
  • [6] Phase separation in spin-orbit-angular-momentum coupling Bose-Einstein condensate systems
    Xu, Jin
    Li, Jinbin
    [J]. MODERN PHYSICS LETTERS B, 2020, 34 (23):
  • [7] Spin-Orbital-Angular-Momentum Coupled Bose-Einstein Condensates
    Chen, H. -R.
    Lin, K. -Y.
    Chen, P. -K.
    Chiu, N. -C.
    Wang, J. -B.
    Chen, C. -A.
    Huang, P. -P.
    Yip, S. -K.
    Kawaguchi, Yuki
    Lin, Y. -J.
    [J]. PHYSICAL REVIEW LETTERS, 2018, 121 (11)
  • [8] Quantum phases of Bose-Einstein condensates with synthetic spin-orbital-angular-momentum coupling
    Qu, Chunlei
    Sun, Kuei
    Zhang, Chuanwei
    [J]. PHYSICAL REVIEW A, 2015, 91 (05):
  • [9] Ground-state phase diagram and excitation spectrum of a Bose-Einstein condensate with spin-orbital-angular-momentum coupling
    Chen, Ke-Ji
    Wu, Fan
    Hu, Jianshen
    He, Lianyi
    [J]. PHYSICAL REVIEW A, 2020, 102 (01)
  • [10] Spin-momentum entanglement in a Bose-Einstein condensate
    Kale, Sumit Suresh
    Ding, Yijue
    Chen, Yong P.
    Friedrich, Bretislav
    Kais, Sabre
    [J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2020, 22 (44) : 25669 - 25674
12345