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arXiv 2112.09415cond-mat.quant-gasphysics.optics
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耗散二元极化激元凝聚体中光学印迹轨道中相缺陷的动力学

Dynamics of phase defects trapped in optically imprinted orbits in dissipative binary polariton condensate

Jan Wingenbach, Matthias Pukrop, Stefan Schumacher, Xuekai Ma

摘要:

研究了在不同自旋分量的凝聚体之间的交叉相互作用(CI)和自旋轨道相互作用(SOI)的影响下,二元极化激元凝聚体中有限光学印记环晶格中的相位缺陷的动力学行为.在这种结构中,我们发现由于极化子流体中的马格努斯力的作用,涡旋在光致轨道中单向循环,并且涡旋的角速度受到SOI和CI的影响。有趣的是,在我们的系统中,这两种相互作用也可以导致拉长和冻结的相位缺陷,形成一个冻结的暗解类似于暗孤子,但在两个自旋分量的有限大小。当暗溶液被进一步拉伸占据整个凝聚环轨道时,相位缺陷触发蛇不稳定性并导致暗环溶液的衰变。单涡的环流方向由马格努斯力决定。这种情况是更复杂的多涡群运动,因为显着的涡反涡相互作用。然而,这种涡旋星座的集体运动可以由SOI确定。

英文摘要:

We study the dynamics of phase defects trapped in a finite optically imprinted ring lattice in binary polariton condensates, under the influence of the cross-interaction (CI) between the condensates in different spin components and the spin-orbit interaction (SOI). In this configuration, we find that a vortex circulates unidirectionally in optically induced orbits because of the Magnus force acting in the polariton fluid, and the vortex' angular velocity is influenced by the SOI and CI. Interestingly, in our system, these two interactions can also lead to elongated and frozen phase defects, forming a frozen dark solution with similarity to a dark soliton but with finite size in both spin components. When the dark solution is stretched further to occupy the entire orbit of a condensate ring, the phase defect triggers a snake instability and induces the decay of the dark ring solution. The circulation direction of a single vortex is determined by the Magnus force. This situation is more complex for the group motion of multiple vortices because of significant vortex-antivortex interaction. The collective motion of such vortex constellations, however, can be determined by the SOI.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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