发表机构
Center for Hybrid Quantum Networks (Hy-Q), Niels Bohr Institute, University of Copenhagen; Ruhr-Universität Bochum（哥本哈根大学尼尔斯·玻尔研究所混合量子网络中心; 波鸿鲁尔大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
本研究展示了一种可编程量子光子平台，在低温下集成相干量子点发射器与可重构光子电路，实现单光子产生、双光子干涉及共振测量，推动量子光子硬件发展。
AI 中文摘要
光子量子技术需要将高质量的量子光源与可编程光子电路集成，以实现片上量子信息处理。半导体量子点已成为量子光产生的领先平台，但其与低温兼容的可编程光子电路的单片集成仍然具有挑战性。在此，我们展示了一个可编程量子光子平台，能够在低温下同时控制基于高度相干量子点的单光子发射器和可重构光学元件。系统级集成使得在单个芯片上对主动组件进行独立的电学和光学寻址成为可能，允许它们并发运行，同时保持相干的非经典光发射。我们展示了多种量子光子功能，包括纯单光子产生、双光子干涉以及集成发射器的共振透射和反射测量。这些结果标志着从孤立的量子光学器件向能够将相干量子发射器与大规模光子功能相结合的可编程量子光子硬件平台迈出了一步。
英文摘要
Photonic quantum technologies require the integration of high-quality quantum light sources with programmable photonic circuitry to enable on-chip quantum information processing. Semiconductor quantum dots have emerged as a leading platform for quantum light generation, yet their monolithic integration with cryogenic-compatible, programmable photonic circuitry remains challenging. Here we demonstrate a programmable quantum photonic platform that enables simultaneous control of highly coherent quantum dot-based single photon emitters and reconfigurable optical elements at cryogenic temperatures. System-level integration enables individual electrical and optical addressing of active components on a single chip, allowing their concurrent operation while preserving coherent non-classical light emission. We demonstrate multiple quantum-photonic functionalities, including pure single-photon generation, two-photon interference, and resonant transmission and reflection measurements of integrated emitters. These results mark a step from isolated quantum-optical devices towards programmable quantum-photonic hardware platforms capable of combining coherent quantum emitters with large-scale photonic functionality.
