Anti-PT symmetry in dissipatively coupled optical systems
Anti-PT symmetry in dissipatively coupled optical systems
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耗散耦合光学系统中的反 PT 对称性
DOI：
10.1103/physreva.96.053845
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发表时间：
2017
影响因子：
2.9
通讯作者：
You Li
中科院分区：
文献类型：
--
作者：
Yang Fan;Liu Yong-Chun;You Li
我们表明，反对称性可以实现耗散耦合光学系统。它的出现引起自发相变的波导和腔系统中的引导和本地化的光子本征模的研究，分别。作为一个普遍存在的特征，我们证明了恒定折射[类似于[Nat.Phys.12，1139（2016）10.1038/nphys 3842]中的单位折射]发生在对称相位，这导致了光子系统的几个有趣的特性，例如平坦的宽带光传输和色散诱导的耗散。
We show that anti-symmetry can be realized in dissipatively coupled optical systems. Its emergence gives rise to spontaneous phase transitions for the guided and localized photonic eigenmodes in the waveguide and cavity systems studied, respectively. As a ubiquitous feature we demonstrate that constant refraction [analogous to unit refraction in [Nat. Phys. 12, 1139 (2016)10.1038/nphys3842]] occurs in the-symmetric phase, which leads to several interesting properties for the photonic system, such as flat broadband light transport and dispersion-induced dissipation.