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quant-ph2022★ 51 cited
Dynamical Degeneracy Splitting and Directional Invisibility in Non-Hermitian Systems
Kai Zhang, Chen Fang, Zhesen Yang
In this paper, we introduce the concept of dynamical degeneracy splitting to describe the anisotropic decay behaviors in non-Hermitian systems. We demonstrate that systems with dyn…
quant-ph2022★ 572 cited
Non-Hermitian Topology and Exceptional-Point Geometries
Kun Ding, Chen Fang, Guancong Ma
Non-Hermitian theory is a theoretical framework that excels at describing open systems. It offers a powerful tool in the characterization of both the intrinsic degrees of freedom (…