标题： 基于微环谐振器的光子电路用于忠实地 heralding NOON 态 显示英文标题

标题： Microring resonator-based photonic circuit for faithfully heralding NOON states

摘要： 我们设计了一种基于微环谐振器（MRR）的设备，可通过 heralding 实现高阶 NOON 态的选择后测量。高于$N=2$的 NOON 态无法确定性地生成。通过调节设备的耦合参数，我们可以最小化“偶然”态的幅度，从而在成功 heralding 事件时最大化获得 NOON 态的概率。对于最优可调设备参数，我们的设备可以在成功 heralding 检测时以 100% 的确定性产生一个 3 光子 NOON 态输出，其发生概率为$\frac{8}{27}$。成功的 heralding 事件允许对 NOON 态进行非破坏性的飞行时间跟踪，从而显著提高将 NOON 态集成到用于量子传感和计量的可扩展系统中的工程控制水平。我们进一步讨论了将此技术扩展到更高阶的具有$N=4,5$的 NOON 态的可能性。 显示英文摘要

摘要： We have designed a Micro-Ring Resonator (MRR) based device that allows for the post-selection of high order NOON states via heralding. NOON states higher than $N=2$ cannot be generated deterministically. By tuning the coupling parameters of the device we can minimize the amplitudes of the 'accidental' states to maximize the probability of obtaining the NOON state upon a successful heralding event. Our device can produce a 3-photon NOON state output with 100% certainty upon a successful heralding detection, which occurs with probability $\frac{8}{27}$ for optimal tunable device parameters. A successful heralding event allows for non-destructive time of flight tracking of the NOON state thus establishing a significantly enhanced level of engineering control for integration of the NOON state into scalable systems for quantum sensing and metrology. We further discuss extensions of our technique to even higher NOON states having $N=4,5$.