arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.03755cond-mat.quant-gas
收藏

激子-极化激元凝聚体中的螺旋涡旋

Spiraling vortices in exciton-polariton condensates

Xuekai Ma, Yaroslav V. Kartashov, Tingge Gao, Lluis Torner, Stefan Schumacher

摘要:

介绍了在非共振泵浦光激发下,受驱动耗散(非平衡)激子-极化激元凝聚体中的螺旋涡旋现象。在适当的低泵浦强度下,这些涡旋被示出为沿着圆形轨迹螺旋,其直径与极化激元的有效质量成反比,而旋转周期与质量无关。直径和旋转周期都与泵浦强度成反比。稳定的螺旋图案的形式复杂的多个相互作用的vortices. At升高的泵的强度,这将创建一个更强的均匀的背景下,我们观察到更复杂的旋涡轨迹类似Spirograph模式。

英文摘要:

We introduce the phenomenon of spiraling vortices in driven-dissipative (non-equilibrium) exciton-polariton condensates excited by a non-resonant pump beam. At suitable low pump intensities, these vortices are shown to spiral along circular trajectories whose diameter is inversely proportional to the effective mass of the polaritons, while the rotation period is mass independent. Both diameter and rotation period are inversely proportional to the pump intensity. Stable spiraling patterns in the form of complexes of multiple mutually-interacting vortices are also found. At elevated pump intensities, which create a stronger homogeneous background, we observe more complex vortex trajectories resembling Spirograph patterns.

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。

↑