| 引用本文格式: Sun Wu,Ye Fu-Qiu,Zhang Guang-Cheng. Regulation and dynamics of non-Hermitian PT symmetric multi-channel optical waveguide system [J]. J. At. Mol. Phys., 2025, 42(1): 015001 (in Chinese) 孙武,叶伏秋,张光成. 非厄米PT对称多通道光波导体系的调控及动力学 [J]. 原子与分子物理学报, 2025, 42(1): 015001] |
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| 非厄米PT对称多通道光波导体系的调控及动力学 |
| Regulation and dynamics of non-Hermitian PT symmetric multi-channel optical waveguide system |
| 摘要点击 392 全文点击 121 投稿时间：2023-04-11 修订日期：2023-04-24 |
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| DOI编号
10.19855/j.1000-0364.2025.015001 |
| 中文关键词
PT对称 非厄米 三通道波导 |
| 英文关键词
PT symmetry,non-hermite,three-channel waveguide |
| 基金项目
国家自然科学基金(批准号：12165008)，吉首大学研究生科研项目（项目编号：Jdy22040） |
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| 中文摘要
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| PT（Parity-Time）对称光学波导系统中有关PT对称性的调控主要通过周期性变化的复折射率材料来实现。本文中我们给出了一种对于已耦合的双通道波导体系中额外引入周期调制的中性波导操纵PT对称性的构型，通过高频近似将系统转换为重整化参数后的等效未调制系统后，发现可以通过额外引入单频周期调制的光波导去调控体系的PT对称性，并且讨论了周期调制的非厄米三通道波导体系的能谱特性。最后通过解析和数值的方法给出了光在非厄米三通道光学波导中的动力学演化。 |
| 英文摘要
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| The regulation of PT symmetry in the PT (Parity-Time) symmetric optical waveguide system is mainly realized by the periodic change of complex refractive index materials. In this paper, we give a configuration of manipulating the PT symmetry for the neutral waveguide with additional periodic modulation in the coupled dual-channel waveguide system. After the system is converted into an equivalent unmodulated system with renormalization parameters by high-frequency approximation, it is found that the PT symmetry of the system can be regulated by introducing an additional single-frequency periodic modulation optical waveguide, and the energy spectrum characteristics of the system with periodic modulation of non-Hermitian three-channel waveguide are discussed, Finally, the dynamic evolution of light in non-Hermitian three-channel optical waveguide is given by analytical and numerical methods. |
