标题： 基于弱非线性 regime 中光子的量子关联的传感 显示英文标题

标题： Sensing Based on Quantum Correlation of Photons in the Weak Nonlinear Regime

摘要： 基于量子干涉的光子量子关联，如非常规光子阻塞（UPB），已在弱非线性 regime 中被广泛研究，以实现单光子源。 然而，如何利用这种效应进行其他实际应用的研究很少。 在这里，我们提出了利用基于量子干涉的光子量子关联实现灵敏传感的方案。 我们证明了在基于量子干涉的具有两个腔体的 Mach-Zehnder 干涉仪（MZI）的混合场输出中可以观察到 UPB。 我们表明输出场的二阶关联函数对系统参数敏感，并提出了通过测量从 MZI 输出的光子的二阶关联来实现角速度和温度传感的方案。 我们发现输出场的二阶关联函数比平均光子数对系统参数更敏感，这为光子的量子关联在灵敏传感中的应用提供了一个应用场景。 显示英文摘要

摘要： Quantum correlation of photons based on quantum interference, such as unconventional photon blockade (UPB), has been extensively studied for realizing single-photon sources in weak nonlinear regime. However, how to use this effect for other practical applications is rarely studied. Here, we propose schemes to realize sensitive sensing by the quantum correlation of photons based on quantum interference. We demonstrate that UPB can be observed in the mixing field output from a Mach-Zehnder interferometer (MZI) with two cavities in the two arms based on quantum interference. We show that the second-order correlation function of the output field is sensitive to the parameters of system and propose schemes to realize angular velocity and temperature sensing by measuring the second-order correlation of the photons output from the MZI. We find that the second-order correlation function of the output field is much more sensitive to the parameters of system than the mean photon number, which provides an application scenario for the quantum correlation of photons in sensitive sensing.