四体耦合腔阵列体系的PT相变及单光子传输

PT Phase Transition and Single Photon Transmission in a Four-Body Coupled Cavity Array System

考虑具有对称增益和耗散的四体耦合腔阵列,分析该体系的PT相变及单光子传输.结果表明:根据不同参数范围,该系统可处于PT对称相及PT对称破缺相,光子局域在不同腔中;单光子传输均具有双向性.

We considered a four-body coupled cavity array with symmetric gain and dissipation, and analyzed the PT phase transition and the single photon transmission of the system. The results show that the system can be in the PT symmetric phase and the PT-symmetric broken phase according to different parameter ranges, which the photons are located in different cavities, and the single photon transmission is bidirectional.