论文标题
独立和异步集成光子对来源之间的纠缠交换
Entanglement swapping between independent and asynchronous integrated photon-pair sources
论文作者
论文摘要
集成的光子学代表了一项可以大大改善量子通信网络的技术，从成本，规模，缩放和健壮性方面。这样做的关键基准是在复杂的量子网络协议中证明其性能，例如独立光子对来源之间的纠缠交换。在这里，使用时间分辨的检测以及两个独立且集成的SI $ _3 $ n $ _4 $ micoror谐振器光子对来源，在CW制度中运行，在CW状态下，我们获得了高达$ 0.97 \ pm 0.02 $的频谱纯度，并获得了$ 0.02 $的$ 0.02 $，并在HOM的两个源中获得了$ v _ pm的两个源。 1.6 \，\％$。这导致纠缠交换可见性高达$ 91.2 \ pm 3.4 \，\％$
Integrated photonics represents a technology that could greatly improve quantum communication networks in terms of cost, size, scaling, and robustness. A key benchmark for this is to demonstrate their performance in complex quantum networking protocols, such as entanglement swapping between independent photon-pair sources. Here, using time-resolved detection, and two independent and integrated Si$_3$N$_4$ microring resonator photon-pair sources, operating in the CW regime at telecom wavelengths, we obtained spectral purities up to $0.97 \pm 0.02$ and a HOM interference visibility between the two sources of $V_{\rm HOM}=93.2 \pm 1.6\,\%$. This results in entanglement swapping visibility as high as $91.2 \pm 3.4\,\%$
