Shen H Z, Zhou Y H, Liu H D, Wang G C, Yi X X
Opt Express. 2015 Dec 14;23(25):32835-58. doi: 10.1364/OE.23.032835.
We propose a scheme of photon blockade in a system comprising of coupled cavities embedded in Kerr nonlinear material, where two cavities are driven and dissipated. We analytically derive the exact optimal conditions for strong photon antibunching, which are in good agreement with those obtained by numerical simulations. We find that conventional and unconventional photon blockades have controllable flexibilities by tuning the strength ratio and relative phase between two complex driving fields. Such unconventional photon-blockade effects are ascribed to the quantum interference effect to avoid two-photon excitation of the coupled cavities. We also discuss the statistical properties of the photons under given optimal conditions. Our results provide a promising platform for the coherent manipulation of photon blockade, which has potential applications for quantum information processing and quantum optical devices.
我们提出了一种在包含嵌入克尔非线性材料中的耦合腔的系统中的光子阻塞方案，其中两个腔被驱动并耗散。我们通过解析得出了强光子反聚束的精确最优条件，这些条件与通过数值模拟获得的条件非常吻合。我们发现，通过调整两个复驱动场之间的强度比和相对相位，常规和非常规光子阻塞具有可控的灵活性。这种非常规光子阻塞效应归因于量子干涉效应，以避免耦合腔的双光子激发。我们还讨论了在给定最优条件下光子的统计特性。我们的结果为光子阻塞的相干操纵提供了一个有前景的平台，这在量子信息处理和量子光学器件方面具有潜在应用。
