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Two-dimensional lattice solitons in polariton condensates with spin-orbit coupling

机译:具有自旋轨道耦合的极化子凝聚态中的二维晶格孤子

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We study two-dimensional fundamental and vortex solitons in polariton condensates with spin-orbit coupling and Zeeman splitting evolving in square arrays of microcavity pillars. Due to the repulsive excitonic nonlinearity, such states are encountered in finite gaps in the spectrum of the periodic array. Spin-orbit coupling between two polarization components stemming from the TE-TM energy splitting of the cavity photons acting together with Zeeman splitting lifts the degeneracy between vortex solitons with opposite topological charges and makes their density profiles different for a fixed energy. This results in the formation of four distinct families of vortex solitons with topological charges m = +/- 1, all of which can be stable. At the same time, only two stable families of fundamental gap solitons characterized by the domination of different polarization components are encountered. (C) 2016 Optical Society of America
机译:我们研究了具有自旋轨道耦合和塞曼分裂的极化子冷凝物中的二维基本和涡旋孤子,它们在微腔柱的方形阵列中演化。由于排斥性激子非线性,在周期阵列频谱中的有限间隙中会遇到这种状态。由于腔体光子的TE-TM能量分裂和塞曼分裂共同作用而产生的两个极化分量之间的自旋轨道耦合,提升了具有相反拓扑电荷的涡旋孤子之间的简并性,并使它们在固定能量下的密度分布不​​同。这导致形成四个具有拓扑电荷m = +/- 1的涡旋孤子家族,所有这些族都是稳定的。同时,仅遇到两个稳定的基本隙缝孤子家族,其特征是不同极化分量的控制。 (C)2016美国眼镜学会

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