1. PT symmetry & 双正交基 2. Non-hermitian SSH model 2.1 广义BZ 2.2 零能模的不一致性 2.3 Winding number Appendix: 对'Non-Hermitian skin effect'这个词早有耳闻,Non-Hermitian physics也一直很火,遂抽空对Non-Hermitian的体系做一个简单的了解。主要参考DOI: 10.1103/PhysRevLett.121.086803。
非厄米算符(Non-Hermitian Operator):开放系统、非平衡态系统、耗散系统mp.weixin.qq.com/s?__biz=MzU0MTM2ODA1NA==&mid=2247496609&idx=1&sn=76e8317832d3d6ceb067e8b06571b226&chksm=fb29b838cc5e312eb36a811de7a08755e542b209b91d67ae0ff34f4d2aead46e2e1646adfabc&token=2121934921&lang=zh_CN...
apl non-hermitian photonics综述-概述说明以及解释 1.引言 1.1概述 概述 在光子学领域,非厄米光子学是一门新兴且具有前瞻性的研究领域。与传统光子学研究关注光子传播的稳定性和能量守恒条件不同,非厄米光子学则更加关注光子传播过程中的非厄米性质和非幺正性质。这种新颖的研究方向为光子学带来了新的可能性和挑战,...
最近有个量子力学作业题提到了 non Hermitian 的 Hamiltonian,然后我就有个疑问就是关于这种情况下的 Hamiltonian 的本征态的正交完备性的考量。 有时候我们可以用复数的本征值的 Hamiltonian 来表示 decay,衰减等等物理,一个比较好玩的例子是用这类 Hamiltonian 来推导出 Breit-Wigner 质量谱。这个跟在经典力学里面...
Non-Hermitian Photonics 基于对称性和拓扑原理调控的人工光子系统在控制光的激发、传播、耦合和接收方面具有极大的灵活性,使其成为实现光子器件新潜力的主要物理平台。 最值得注意的是,通过光学增益和损耗操纵光子本征态的能力为定制非厄米哈密顿量(non-Hermitian ...
1) non-Hermitian system 非厄米系统 2) non-he 非厄米算符 3) Thue system 图厄系统 1. A finite commutative specialThue systemand its word problem are discussed. 讨论了有限可交换特殊图厄系统 (Σ∶ R)及其字问题 ,证明了一个有限可交换特殊图厄系统 (Σ∶ R)是一个有限群与一个自由幺半群的直积...
In Hermitian models, several dynamical decoupling schemes have been suggested, in which the discrete-continuum interaction can be substantially reduced and even suppressed. In this work,we consider a discrete state interacting with a continuum via a time-dependent non-Hermitian coupling with finite (...
Non-Hermitian theory is a theoretical framework used to describe open systems. It offers a powerful tool in the characterization of both the intrinsic degrees of freedom of a system and the interactions with the external environment. The non-Hermitian framework consists of mathematical structures that...
Recently, optical nonlinearity has emerged as a tool for tailoring topological and non-Hermitian (NH) properties, promising fast manipulation of topological phases. In this work, we observe topologically protected NH phase transitions driven by optical nonlinearity in a silicon nanophotonic Floquet ...
1) non-Hermitian Hamiltonian 非厄米哈密顿量 1. Physical meaning ofnon-Hermitian Hamiltonian; 非厄米哈密顿量的物理意义 2) Hamiltonian[英][,hæmil'təuniən] [美][,hæmḷ'tonɪən] 哈密顿量 1. Size Consistency Study on the Single Reference Perturbation Theory with TwoHamiltonian...