论文标题
在强限的环形冷凝物中实施原子鱿鱼
Implementation of an atomtronic SQUID in a strongly confined toroidal condensate
论文作者
论文摘要
我们研究了由两个移动屏障产生的原子鱿鱼的动力学，在准1D环形凝结物中以两个不同的恒定速度移动。我们从数值上实现了多带截断的Wigner近似，以演示反射在振荡电压 - 频率依赖性中的鱿鱼的功能。两个屏障的相对速度导致化学电位失衡类似于电子系统中的电压。两个屏障的平均速度对应于凝结物的旋转，类似于磁通量。我们证明了电压等效显示特征磁通依赖性振荡。我们指出了相位滑动动力学的屏障高度和放松时间的参数状态，从而为Atomtronic Squid操作提供了现实的协议。
We investigate the dynamics of an atomtronic SQUID created by two mobile barriers, moving at two different, constant velocities in a quasi-1D toroidal condensate. We implement a multi-band truncated Wigner approximation numerically, to demonstrate the functionality of a SQUID reflected in the oscillatory voltage-flux dependence. The relative velocity of the two barriers results in a chemical potential imbalance analogous to a voltage in an electronic system. The average velocity of the two barriers corresponds to a rotation of the condensate, analogous to a magnetic flux. We demonstrate that the voltage equivalent shows characteristic flux-dependent oscillations. We point out the parameter regime of barrier heights and relaxation times for the phase slip dynamics, resulting in a realistic protocol for atomtronic SQUID operation.
