Hermitian Bulk  –  Non-Hermitian Boundary Correspondence

Non-Hermitian band theory distinguishes between line gaps and point gaps. While point gaps can give rise to intrinsic non-Hermitian band topology without Hermitian counterparts, line-gapped systems can always be adiabatically deformed to a Hermitian limit. Here, we show that line-gap topology and po...

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Bibliographic Details
Main Authors: Frank Schindler, Kaiyuan Gu, Biao Lian, Kohei Kawabata
Format: Article
Language:English
Published: American Physical Society 2023-08-01
Series:PRX Quantum
Online Access:http://doi.org/10.1103/PRXQuantum.4.030315