Title: Chiral dynamics with giant systems Show Chinese title

Title: 手性动力学与巨系统

Abstract: We explore the chiral dynamics in a parity-time-symmetric system consisting of a giant Kerr cavity nonlocally coupled to a one-dimensional waveguide. By tuning the phase difference between the two coupling points to match the propagation phase at the driving frequency, chiral cavity-waveguide interactions are achieved, enabling the deterministic generation of photons with nontrivial statistics only for a single incident direction. This nontrivial-statistical photons can be produced even in the strong dissipation regime due to the interference between reflected and transmitted photons propagating between the coupling points. Our investigation encompasses a broad range of distances between the coupling points, incorporating non-Markovian effects. Notably, at a phase difference of $\pi/2$, the system's dynamics become exactly Markovian, while the output field retains non-Markovian characteristics. Under these conditions, we analyze nonreciprocal dissipative phase transitions driven by a strong external field and elucidate the influence of the non-Markovian effect. Our results offer valuable insights for the advancement of nonreciprocal photon devices and deterministic photon generations, providing a deeper understanding of dissipative phase transitions. Show Chinese abstract

Abstract: 我们研究了一个由一个巨Kerr腔与一维波导非局部耦合而成的宇称-时间对称系统中的手性动力学。通过调节两个耦合点之间的相位差，使其匹配驱动频率处的传播相位，实现了手性腔-波导相互作用，从而仅在单一入射方向上实现了具有非平凡统计特性的光子的确定性生成。由于在耦合点之间传播的反射光子和透射光子之间的干涉，即使在强耗散区域也可以产生这种非平凡统计特性的光子。我们的研究涵盖了耦合点之间广泛的距离范围，并包含了非马尔可夫效应。值得注意的是，当相位差为$\pi/2$时，系统的动力学变得完全马尔可夫，而输出场仍保留非马尔可夫特性。在这些条件下，我们分析了由强外部场驱动的非互易耗散相变，并阐明了非马尔可夫效应的影响。我们的结果为非互易光子器件和确定性光子生成的发展提供了有价值的见解，加深了对耗散相变的理解。