论文标题
与硅光子学中的人工原子无法区分的光子
Indistinguishable photons from an artificial atom in silicon photonics
论文作者
论文摘要
硅是大规模构建电子和光子电路的理想材料。硅中的自旋量子和集成的光子量子技术通过利用先进的半导体制造和集成功能，为扩展提供了有希望的缩放途径。然而，缺乏确定性的量子光源，两光子门和硅中的自旋界面是对可伸缩性的主要挑战。在这项工作中，我们根据人工原子显示了一种新型的硅光子光子源。我们表明，硅波导中的G中心可以生成高纯电信波段单光子。我们执行高分辨率光谱和时间延迟的两光子干扰，以证明从硅波导中G中心发出的单个光子的不可区分性。我们的结果表明，硅光子中的人造原子可以采购适用于光子量子网络和处理器的高度相干的单光子。
Silicon is the ideal material for building electronic and photonic circuits at scale. Spin qubits and integrated photonic quantum technologies in silicon offer a promising path to scaling by leveraging advanced semiconductor manufacturing and integration capabilities. However, the lack of deterministic quantum light sources, two-photon gates, and spin-photon interfaces in silicon poses a major challenge to scalability. In this work, we show a new type of indistinguishable photon source in silicon photonics based on an artificial atom. We show that a G center in a silicon waveguide can generate high-purity telecom-band single photons. We perform high-resolution spectroscopy and time-delayed two-photon interference to demonstrate the indistinguishability of single photons emitted from a G center in a silicon waveguide. Our results show that artificial atoms in silicon photonics can source highly coherent single photons suitable for photonic quantum networks and processors.
