Abstract The distributed quantum network, in which nodes comprising small but well-controlled quantum states are entangled via photonic channels, has in recent years emerged as a strategy for delivering a range of quantum technologies including secure communications, enhanced sensing and scalable quantum computing. Colour centres in diamond are amongst the most promising candidates for nodes fabricated in the solid-state, offering potential for large scale production and for chip-scale integrated devices. In this review we consider the progress made and the remaining challenges in developing diamond-based nodes for quantum networks. We focus on the nitrogen-vacancy and silicon-vacancy colour centres, which have demonstrated many of the necessary attributes for these applications. We focus in particular on the use of waveguides and other photonic microstructures for increasing the efficiency with which photons emitted from these colour centres can be coupled into a network, and the use of microcavities for increasing the fraction of photons emitted that are suitable for generating entanglement between nodes.

中文翻译：

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分布式量子网络的金刚石光子学

摘要 分布式量子网络，其中包含小的但控制良好的量子态的节点通过光子通道纠缠，近年来已成为提供一系列量子技术的策略，包括安全通信、增强传感和可扩展量子计算。金刚石中的色心是固态制造节点的最有希望的候选者之一，为大规模生产和芯片级集成设备提供了潜力。在这篇综述中，我们考虑了在为量子网络开发基于钻石的节点方面取得的进展和剩余的挑战。我们专注于氮空位和硅空位色心，它们已经证明了这些应用的许多必要属性。