论文标题
局部和扩展阶段的共存：谐波陷阱中的多体定位
Coexistence of localized and extended phases: Many-body localization in a harmonic trap
论文作者
论文摘要
我们表明，谐波陷阱的存在本身可能导致在准原子几何几何形状中限制在该陷阱中的冷原子的多体定位。具体而言，预测陷阱中心的定位相位与边缘更接近边缘的局部区域的共存，其边缘线取决于陷阱的曲率。这种现象的起源与鲜明的定位相似，应直接观察到冷原子物种。我们讨论了无旋转的费米子，因为后者我们迄今尚未对其进行分析，同时解决了Stark本地化。
We show that the presence of a harmonic trap may in itself lead to many-body localization for cold atoms confined in that trap in a quasi-one-dimensional geometry. Specifically, the coexistence of delocalized phase in the center of the trap with localized region closer to the edges is predicted with the borderline dependent on the curvature of the trap. The phenomenon, similar in its origin to Stark localization, should be directly observed with cold atomic species. We discuss both the spinless and the spinful fermions, for the latter we address Stark localization at the same time as it has not been analyzed up till now.
