论文标题
激元 - 果态冷凝物中的螺旋涡旋
Spiraling vortices in exciton-polariton condensates
论文作者
论文摘要
我们介绍了通过非谐波泵梁激发的驱动（非平衡）激发型 - 果态凝结物中螺旋涡旋的现象。在合适的低泵强度下，这些涡旋被证明沿圆形轨迹螺旋形，其直径与极性子的有效质量成反比，而旋转周期则独立于质量。直径和旋转周期都与泵强度成反比。还发现了多个相互互动涡流的复合物形式的稳定螺旋模式。在高架泵强度上，这会产生更强的均匀背景，我们观察到更复杂的涡流轨迹，类似于肺活量图。
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.
