论文标题
具有中性原子和集成电信界面的纳米光子量子网络节点
Nanophotonic quantum network node with neutral atoms and an integrated telecom interface
论文作者
论文摘要
基于光子通道链接的量子存储节点的长距离，分布式量子网络的实现仍然是一个杰出的挑战。我们提出了一个基于中性碱原子的量子网络节点，该原子结合了纳米光子晶体腔，该原子将长寿命的记忆值与电信范围的光子界面结合在一起，从而在低损耗光纤上实现了纠缠的长距离分布。我们提出了一种新的方案，用于生成一个原子 - 光子纠缠状态，该状态使用碱原子激发态之间的电信过渡。我们使用Rubidium和Cesium原子分析了该方案的现实实现，并考虑了纳米含量晶体腔的完整原子水平结构和特性。我们发现，可以使用当前技术生成高忠诚的状态
The realization of a long-distance, distributed quantum network based on quantum memory nodes that are linked by photonic channels remains an outstanding challenge. We propose a quantum network node based on neutral alkali atoms coupled to nanophotonic crystal cavities that combines a long-lived memory qubit with a photonic interface at the telecom range, thereby enabling the long-distance distribution of entanglement over low loss optical fibers. We present a novel protocol for the generation of an atom-photon entangled state which uses telecom transitions between excited states of the alkali atoms. We analyze the realistic implementation of this protocol using rubidium and cesium atoms taking into account the full atomic level structure and properties of the nanophotonic crystal cavity. We find that a high fidelity entangled state can be generated with current technologies
