In this work, we propose to manipulate the statistical properties of the photons transport nonreciprocally via rotating nonlinear devices consisting of an atom coupled to a spinning cavity. This nonreciprocal effect allows the flow of light from one side but blocks it from the other with the same driving strength. We show that the nonreciprocal unconventional photon blockade can happen when the cavity is driven by the laser field. Under the weak driving condition, we discuss the physical origins of the nonreciprocal unconventional photon blockade, which originates from the destructive quantum interference between different paths from the ground state to the two-photon state by driving the device from the left side, while the quantum interference paths are broken when the device is driven from the right side, which leads to the occurring of the photon bunching. The optimal conditions for strong photon antibunching are analytically derived, which are in good agreement with those obtained by numerical simulations. Our proposal has potential applications for the on-chip nonreciprocal single-photon devices and provides an effective way for potential applications in solid state quantum computation and quantum information process.

在这项工作中，我们建议通过由耦合到旋转腔的原子组成的旋转非线性装置来非互易地操纵光子传输的统计特性。这种非互易效应允许光从一侧流动，但以相同的驱动强度阻挡另一侧的光。我们表明，当腔由激光场驱动时，会发生非互易的非常规光子阻塞。在弱驱动条件下，我们讨论了非互易非常规光子阻塞的物理起源，它起源于通过从左侧驱动器件，从基态到双光子态的不同路径之间的破坏性量子干涉，而量子从右侧驱动设备时干扰路径中断，这导致光子聚束的发生。解析推导出强光子反聚束的最佳条件，与数值模拟得到的条件吻合较好。我们的提议对片上非互易单光子器件具有潜在应用，并为固态量子计算和量子信息处理中的潜在应用提供了有效途径。