Abstract. In this study, a one-way electromagnetic waveguide consisting of magneto-optical (MO) and parity-time (PT)-symmetric materials was constructed. Due to the composite boundary conditions, this waveguide simultaneously has two unidirectional dispersive curves and two different unidirectional mechanisms. One unidirectional mechanism is breaking the time-reversal symmetry of MO materials, and the other unidirectional mechanism is asymmetric complex eigenvalues in the local PT symmetrical configuration. The designed structure provides an effective approach to control the directions of electromagnetic waves.

中文翻译：

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由奇偶时间对称和磁光材料组成的二维光子晶体中的单向传输

摘要。在这项研究中，构建了一种由磁光 (MO) 和奇偶时间 (PT) 对称材料组成的单向电磁波导。由于复合边界条件，该波导同时具有两条单向色散曲线和两种不同的单向机制。一种单向机制是打破 MO 材料的时间反转对称性，另一种单向机制是局部 PT 对称配置中的不对称复特征值。所设计的结构提供了一种有效的方法来控制电磁波的方向。