K
Kai Zhang
Researcher at Chinese Academy of Sciences
Publications - 6
Citations - 815
Kai Zhang is an academic researcher from Chinese Academy of Sciences. The author has contributed to research in topics: Hamiltonian (quantum mechanics) & Complex plane. The author has an hindex of 5, co-authored 6 publications receiving 312 citations.
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Correspondence between Winding Numbers and Skin Modes in Non-Hermitian Systems
TL;DR: In this article, the authors established exact relations between the winding of energy on the complex plane as momentum traverses the Brillouin zone with periodic boundary condition, and the presence of "skin modes" with open boundary conditions in non-Hermitian systems.
Journal ArticleDOI
Non-Hermitian Bulk-Boundary Correspondence and Auxiliary Generalized Brillouin Zone Theory
TL;DR: In this article, the generalized Brillouin zone (GBZ) is calculated analytically in one-dimensional non-Hermitian systems, which helps us to understand the non-hermitian bulk-boundary correspondence.
Journal ArticleDOI
Helical damping and dynamical critical skin effect in open quantum systems
TL;DR: In this article, the authors demonstrate the existence of helical damping and dynamical critical skin effect in quantum open systems and show that the change of generalized Brillouin zone equation is the origin of critical skin effects.
Journal Article
Correspondence between Winding Numbers and Skin Modes in Non-Hermitian Systems
Kai Zhang,Zhesen Yang,Chen Fang +2 more
TL;DR: In this paper, the authors established exact relations between the winding of energy on the complex plane as momentum traverses the Brillouin zone with periodic boundary condition, and the presence of "skin modes" with open boundary conditions in non-Hermitian systems.
Posted Content
Auxiliary generalized Brillouin zone method in non-Hermitian band theory
TL;DR: In this paper, a systematic and self-consistent method to calculate the generalized Brillouin Zone (GBZ) analytically in one dimensional non-Hermitian Hamiltonian systems is provided.