论文标题
purcell增强和无法区分的单光子生成与芯片集成环谐振器的量子点的生成
Purcell enhanced and indistinguishable single-photon generation from quantum dots coupled to on-chip integrated ring resonators
论文作者
论文摘要
集成的光子电路为高级量子光学应用程序提供了功能的多功能工具箱。在这里，我们以purcell增强的单光子源的形式演示了这种系统的重要组成部分，基于量子点耦合到强大的芯片上积分的谐振器。为此，我们基于分布式的Bragg反射脊波导开发GAAS整体环腔。在共振激发条件下，我们观察到使用Purcell效应的两倍自发发射率提高了，并通过RABI振荡对QD-TWO级系统进行了完全连贯的光学控制。此外，我们展示了一个按需单光子生成，其多光子发射概率高达1％和两光子干扰，可见度高达95％。该集成的单光子源可以很容易地进行扩展，这有望成为可扩展的片上线性光学量子模拟，量子计算和量子网络的现实途径。
Integrated photonic circuits provide a versatile toolbox of functionalities for advanced quantum optics applications. Here, we demonstrate an essential component of such a system in the form of a Purcell enhanced single-photon source based on a quantum dot coupled to a robust on-chip integrated resonator. For that, we develop GaAs monolithic ring cavities based on distributed Bragg reflector ridge waveguides. Under resonant excitation conditions, we observe an over twofold spontaneous emission rate enhancement using Purcell effect and gain a full coherent optical control of a QD-two-level system via Rabi oscillations. Furthermore, we demonstrate an on-demand single-photon generation with strongly suppressed multi-photon emission probability as low as 1% and two-photon interference with visibility up to 95%. This integrated single-photon source can be readily scaled up, promising a realistic pathway for scalable on-chip linear optical quantum simulation, quantum computation and quantum networks.
