论文标题
激子 - 摩尔龙的旋转超流量，在拆分环上
Spinor superfluid currents of exciton-polaritons on a split-ring
论文作者
论文摘要
最近，已经提出了激子极化子的脱环玻璃纤维冷凝物来实现Qubits。我们在一维环中通过三角函数电位分裂的一维环中的极化环凝结物的分析模型。持续电流被嵌入非相互作用粒子标量冷凝物中的潜在缺陷所阻止，但是，它在存在上的非临界非线性存在下重新出现。非线性超电流的特征是分数轨道动量，而其本征函数可能具有灰色或深色孤子。旋转冷凝物的自旋和轨道角动量之间的耦合对持续电流产生至关重要的影响。我们表明，自旋轨道相互作用（SOI）诱导凝结物中的净超流体电流，并具有空间均匀的自旋极化。我们还找到了溶液，其中SOI诱导的冷凝物的两个自旋成分的电流沿相反的方向传播。纺纱的相应状态凝聚了一个组合的镜面反射和自旋叉对称性。
Recently, split-ring bosonic condensates of exciton polaritons have been proposed for realisation of qubits. We formulate an analytical model of a polariton condensate in a one-dimensional ring split by a delta-function potential. The persistent current is stopped by the potential defect embedded in a scalar condensate of non-interacting particles, however, it reappears in the presence of an up-critical non-linearity. The nonlinear supercurrents are characterised by fractional orbital momenta while their eigenfunctions may feature grey or dark solitons. The coupling between the spin and the orbital angular momentum of a spinor condensate affects persistent currents crucially. We show that the spin-orbit interaction (SOI) induces the net superfluid current in the condensate with a spatially uniform spin polarisation. We also find solutions where the SOI-induced currents of two spin components of the condensate propagate in opposite directions. The corresponding states of spinor condensates obey a combined mirror reflection and the spin-flip symmetry.
