Control and Entanglement of Individual Rydberg Atoms near a Nanoscale Device
Control and Entanglement of Individual Rydberg Atoms near a Nanoscale Device
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DOI：
10.1103/physrevlett.132.113601
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发表时间：
2024-03-14
影响因子：
8.6
通讯作者：
Lukin，Mikhail D.
中科院分区：
文献类型：
--
作者：
Ocola，Paloma L.;Dimitrova，Ivana;Lukin，Mikhail D.
介质表面附近里德堡原子的相干控制是一个主要的挑战，因为里德堡态对电场的敏感性很大。我们演示了相干的单原子操作和两个量子比特的纠缠，就像纳米光子器件一样接近。利用光镊实现的单个原子控制来研究表面电场的时空特性，我们采用动态解耦技术来表征和消除亚微秒级时间分辨率的电场噪声。我们进一步使用纠缠辅助传感在微米尺度上精确地绘制电场梯度的大小和方向。我们的观察结果为里德伯阵列与微纳米级器件的集成开辟了一条道路，用于量子网络和量子信息科学的应用。
Coherent control of Rydberg atoms near dielectric surfaces is a major challenge due to the large sensitivity of Rydberg states to electric fields. We demonstrate coherent single-atom operations and two-qubit entanglement as close asfrom a nanophotonic device. Using the individual atom control enabled by optical tweezers to study the spatial and temporal properties of the electric field from the surface, we employ dynamical decoupling techniques to characterize and cancel the electric-field noise with submicrosecond temporal resolution. We further use entanglement-assisted sensing to accurately map magnitude and direction of electric-field gradients on a micrometer scale. Our observations open a path for integration of Rydberg arrays with micro- and nanoscale devices for applications in quantum networking and quantum information science.