论文标题
跨越超氟到苏皮果过渡时，在偶极超酚类中的量化涡流的创造和鲁棒性
Creation and robustness of quantized vortices in a dipolar supersolid when crossing the superfluid-to-supersolid transition
论文作者
论文摘要
对偶极玻色 - 因斯坦冷凝水的实验最近报道了超偏度的观察。尽管量化的涡旋构成了超流体的关键探针，但它们在偶极超olid中的可观察性在很大程度上是由于液滴的形成引起的强密度耗竭。我们提出了一种新颖的方法，以基于S-Wave散射长度跨过超丝菌溶剂过渡的淬灭，以实用涡度及其观察。从在超氟相位的缓慢旋转，无涡流的构型开始，我们预测当系统进入Supersolid阶段时，涡旋成核，这是由于Supersolid中临界角速度的强烈降低。一旦创建了涡流，我们就会证明当冷凝物被带回超流量阶段时，它可以坚固地保存，可以很容易地观察到它。
Experiments on dipolar Bose-Einstein condensates have recently reported the observation of supersolidity. Although quantized vortices constitute a key probe of superfluidity, their observability in dipolar supersolids is largely prevented by the strong density depletion caused by the formation of droplets. We present a novel approach to the nucleation of vortices and their observation, based on the quenching of the s-wave scattering length across the superfluid-supersolid transition. Starting from a slowly rotating, vortex-free, configuration in the superfluid phase, we predict vortex nucleation as the system enters the supersolid phase, due to the strong reduction of the critical angular velocity in the supersolid. Once a vortex is created, we show that it is robustly preserved when the condensate is brought back to the superfluid phase, where it may be readily observed.
