Topological defects of dipolar bose-einstein condensates with dresselhaus spin-orbit coupling in an anharmonic trap

被引:0
作者
Yang, Hui [1 ]
Gao, Yan [1 ]
Yu, Bo [1 ]
Zhang, Jinhua [1 ]
机构
[1] Xinzhou Teachers Univ, Dept Phys, Xinzhou, Peoples R China
关键词
Bose-Einstein condensates; Dresselhaus spin-orbit coupling; dipole-dipole interaction; vortex; skyrmion;
D O I
10.3389/fphy.2022.1022811
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We consider the topological defects and spin structures of binary Bose-Einstein condensates (BECs) with Dresselhaus spin-orbit coupling (D-SOC) and dipole-dipole interaction (DDI) in an anharmonic trap. The combined effects of D-SOC, DDI and anharmonic trap on the ground-state phases of the system are analyzed. Our results show various structural phase transitions can be achieved by adjusting the magnitudes of the D-SOC and DDI. Meantime, a ground-state phase diagram is given as a function of the D-SOC and DDI strengths. In addition, we find that tuning the D-SOC and the DDI can derive novel rich topological configurations, including ghost vortex, half-quantum vortex, skyrmion pair, vertical skyrmion string and horizontal skyrmion string.
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页数:9
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共 62 条
  • [1] Phase diagrams and Thomas-Fermi estimates for spin-orbit-coupled Bose-Einstein condensates under rotation
    Aftalion, Amandine
    Mason, Peter
    [J]. PHYSICAL REVIEW A, 2013, 88 (02):
  • [2] Bose-Einstein Condensation of Erbium
    Aikawa, K.
    Frisch, A.
    Mark, M.
    Baier, S.
    Rietzler, A.
    Grimm, R.
    Ferlaino, F.
    [J]. PHYSICAL REVIEW LETTERS, 2012, 108 (21)
  • [3] OSCILLATORY EFFECTS AND THE MAGNETIC-SUSCEPTIBILITY OF CARRIERS IN INVERSION-LAYERS
    BYCHKOV, YA
    RASHBA, EI
    [J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (33): : 6039 - 6045
  • [4] Spin-Injection Spectroscopy of a Spin-Orbit Coupled Fermi Gas
    Cheuk, Lawrence W.
    Sommer, Ariel T.
    Hadzibabic, Zoran
    Yefsah, Tarik
    Bakr, Waseem S.
    Zwierlein, Martin W.
    [J]. PHYSICAL REVIEW LETTERS, 2012, 109 (09)
  • [5] Observation of roton mode population in a dipolar quantum gas
    Chomaz, L.
    van Bijnen, R. M. W.
    Petter, D.
    Faraoni, G.
    Baier, S.
    Becher, J. H.
    Mark, M. J.
    Waechtler, F.
    Santos, L.
    Ferlaino, F.
    [J]. NATURE PHYSICS, 2018, 14 (05) : 442 - +
  • [6] Colloquium: Artificial gauge potentials for neutral atoms
    Dalibard, Jean
    Gerbier, Fabrice
    Juzeliunas, Gediminas
    Oehberg, Patrik
    [J]. REVIEWS OF MODERN PHYSICS, 2011, 83 (04) : 1523 - 1543
  • [7] Spin-Orbit-Coupled Dipolar Bose-Einstein Condensates
    Deng, Y.
    Cheng, J.
    Jing, H.
    Sun, C. -P.
    Yi, S.
    [J]. PHYSICAL REVIEW LETTERS, 2012, 108 (12)
  • [8] SPIN-ORBIT COUPLING EFFECTS IN ZINC BLENDE STRUCTURES
    DRESSELHAUS, G
    [J]. PHYSICAL REVIEW, 1955, 100 (02): : 580 - 586
  • [9] Vortex dynamics in spin-orbit-coupled Bose-Einstein condensates
    Fetter, Alexander L.
    [J]. PHYSICAL REVIEW A, 2014, 89 (02):
  • [10] Spin-orbit coupling in quantum gases
    Galitski, Victor
    Spielman, Ian B.
    [J]. NATURE, 2013, 494 (7435) : 49 - 54