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Topological spin-Meissner states in nonequilibrium polariton condensates

机译:非平衡极化子冷凝物中的拓扑自旋-Meissner态

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摘要

A spin-Meissner effect occurs when the photoluminescence energy is dependent on interactions of otherwise magnetically sensitive particles. Under such a condition, the Zeeman energy splitting becomes zero when the chemical potentials for individual spin components of a spinor polariton condensate are equal or synchronized. Herein, we explore the types of topological spin-Meissner (TSM) states in the formation of a spinor dark soliton in semiconductor microcavities. The effects of nonlinear spin-anisotropic interactions between polaritons, spin-flipping rate from the introduced defects, and energy splitting are theoretically investigated. We observe that, below a critical energy splitting for a given pump power, multislable TSM states exist. However, above a critical energy splitting, the two spin components of the dark soliton pair become desynchronized.
机译:当光致发光能量取决于磁性敏感粒子之间的相互作用时,就会发生自旋Meissner效应。在这种条件下,当自旋极化子冷凝物的各个自旋组分的化学势相等或同步时,塞曼能量分裂为零。在这里,我们探索在半导体微腔中形成自旋暗孤子的拓扑自旋Meissner(TSM)状态的类型。理论上研究了极化子之间的非线性自旋各向异性相互作用,引入缺陷的自旋翻转速率以及能量分裂的影响。我们观察到,对于给定的泵浦功率,在临界能量分配之下,存在多个稳定的TSM状态。但是,在临界能量分裂以上,暗孤子对的两个自旋分量变得不同步。

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  • 来源
    《Physical review》 |2020年第12期|125304.1-125304.6|共6页
  • 作者

    Szu-Cheng Cheng; Ting-Wei Chen;

  • 作者单位

    Department of Optoelectric Physics Chinese Culture University Taipei 11114 Taiwan Republic of China;

    Department of Electrophysics National Chiayi University Chiayi City 60004 Taiwan Republic of China;

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  • 正文语种 eng
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