Persistent current oscillations in a double-ring quantum gas
Persistent current oscillations in a double-ring quantum gas
复制标题
双环量子气体中的持续电流振荡
DOI：
10.1103/physrevresearch.4.043171
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发表时间：
2022
影响因子：
4.2
通讯作者：
Proukakis, N. P.
中科院分区：
文献类型：
--
作者：
Bland, T.;Yatsuta, I. V.;Edwards, M.;Nikolaieva, Y. O.;Oliinyk, A. O.;Yakimenko, A. I.;Proukakis, N. P.
已知封闭量子流体回路中的涡度以持续电流的形式出现。在这项工作中，我们开发了一种方法来设计密度耦合环形原子玻色-爱因斯坦凝聚体在实验可达区域之间的量子化涡量输运。在环之间引入可调谐的弱链路，我们观察和表征了电流的可控周期性转移，并通过一系列互补的最先进的数值方法研究了温度在抑制这些振荡中的作用。我们的设置为精确测量局部加速度和旋转铺平了道路。
Vorticity in closed quantum fluid circuits is known to arise in the form of persistent currents. In this work, we develop a method to engineer transport of the quantized vorticity between density-coupled ring-shaped atomic Bose-Einstein condensates in experimentally accessible regimes. Introducing a tunable weak link between the rings, we observe and characterize the controllable periodic transfer of the current and investigate the role of temperature on suppressing these oscillations via a range of complementary state-of-the-art numerical methods. Our setup paves the way for precision measurements of local acceleration and rotation.