论文标题
频域量子量子干扰与来自集成微孔子的相关光子相关的光子
Frequency-Domain Quantum Interference with Correlated Photons from an Integrated Microresonator
论文作者
论文摘要
量子信息与光纤和集成光子技术的频率编码可以显着降低实现全光量子网络的复杂性和资源要求。这种频域处理的关键挑战是在各个带宽范围内实现不同频率的量子光场之间的相干和选择性相互作用。在这里，我们报告了频域的hong-ou-曼德尔干扰，该干扰与基于芯片的微孔子产生的频谱不同的光子。我们使用四波混合来实现主动频梁 - 分解器，并实现$ 0.95 \ pm 0.02 $的干扰可见性。我们的工作建立了四波混合，作为频域中选择性高保真两光量操作的工具，该工具与集成的单光子源结合使用，为频率 - 多路复用光子量子量子网络提供了一个基础。
Frequency encoding of quantum information together with fiber and integrated photonic technologies can significantly reduce the complexity and resource requirements for realizing all-photonic quantum networks. The key challenge for such frequency domain processing of single photons is to realize coherent and selective interactions between quantum optical fields of different frequencies over a range of bandwidths. Here, we report frequency-domain Hong-Ou-Mandel interference with spectrally distinct photons generated from a chip-based microresonator. We use four-wave mixing to implement an active frequency beam-splitter and achieve interference visibilities of $0.95 \pm 0.02$. Our work establishes four-wave mixing as a tool for selective high-fidelity two-photon operations in the frequency domain which, combined with integrated single-photon sources, provides a building block for frequency-multiplexed photonic quantum networks.
