Trapped Atoms and Superradiance on an Integrated Nanophotonic Microring Circuit,Physical Review X

当前位置： X-MOL 学术 › Phys. Rev. X › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Trapped Atoms and Superradiance on an Integrated Nanophotonic Microring Circuit
Physical Review X ( IF 11.6 ) Pub Date : 2024-07-09 , DOI: 10.1103/physrevx.14.031004
Xinchao Zhou ₁ , Hikaru Tamura ₁ , Tzu-Han Chang ₁ , Chen-Lung Hung _{1,

1}

Affiliation

Interfacing cold atoms with integrated nanophotonic devices could offer new paradigms for engineering atom-light interactions and provide a potentially scalable route for quantum sensing, metrology, and quantum information processing. However, it remains a challenging task to efficiently trap a large ensemble of cold atoms on an integrated nanophotonic circuit. Here, we demonstrate direct loading of an ensemble of up to 70 atoms into an optical microtrap on a nanophotonic microring circuit. Efficient trap loading is achieved by employing degenerate Raman-sideband cooling in the microtrap, where a built-in spin-motion coupling arises directly from the vector light shift of the evanescent-field potential on a microring. Atoms are cooled into the trap via optical pumping with a single free space beam. We have achieved a trap lifetime approaching 700 ms under continuous cooling. We show that the trapped atoms display large cooperative coupling and superradiant decay into a whispering-gallery mode of the microring resonator, holding promise for explorations of new collective effects. Our technique can be extended to trapping a large ensemble of cold atoms on nanophotonic circuits for various quantum applications.

中文翻译：

集成纳米光子微环电路上的捕获原子和超辐射

将冷原子与集成纳米光子器件连接可以为工程原子-光相互作用提供新的范例，并为量子传感、计量和量子信息处理提供潜在的可扩展途径。然而，在集成纳米光子电路上有效捕获大量冷原子仍然是一项具有挑战性的任务。在这里，我们演示了将多达 70 个原子的集合直接加载到纳米光子微环电路上的光学微陷阱中。有效的陷阱负载是通过在微陷阱中采用简并拉曼边带冷却来实现的，其中内置的自旋运动耦合直接由微环上倏逝场势的矢量光移产生。原子通过单个自由空间光束的光泵浦被冷却到陷阱中。我们在连续冷却下实现了接近 700 毫秒的陷阱寿命。我们证明，被捕获的原子在微环谐振器的回音壁模式中表现出巨大的协同耦合和超辐射衰变，这为探索新的集体效应带来了希望。我们的技术可以扩展到在纳米光子电路上捕获大量冷原子，以用于各种量子应用。

更新日期：2024-07-09

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南