论文标题
量子孤子原子干扰装置
The quantum solitons atomtronic interference device
论文作者
论文摘要
我们研究了一个量子多体系统，该系统吸引局部限制在环形电位上并被弱环节打断的玻色子。使用这种体系结构，该系统定义了原子量子干扰设备利用量子孤子电流。我们证明该系统的特征是相互作用与弱环节强度之间的特定相互作用。特别是，我们发现，根据操作条件，电流可以是杂质和相互作用强度之间相对大小的通用功能。低谎言的多体状态通过淬火动力学方案研究，该方案是Rabi干扰法的原子态对应。通过这种方法，我们演示了我们的系统如何定义一个耦合孤子电流的两个级别系统。通过分析动量分布来解决当前状态。
We study a quantum many-body system of attracting bosons confined in a ring-shaped potential and interrupted by a weak link. With such architecture, the system defines atomtronic quantum interference devices harnessing quantum solitonic currents. We demonstrate that the system is characterized by the specific interplay between the interaction and the strength of the weak link. In particular, we find that, depending on the operating conditions, the current can be a universal function of the relative size between the strength of the impurity and interaction. The low lying many-body states are studied through a quench dynamical protocol that is the atomtronic counterpart of Rabi interferometry. With this approach, we demonstrate how our system defines a two level system of coupled solitonic currents. The current states are addressed through the analysis of the momentum distribution.
