Non-Hermitian topological systems with eigenvalues that are always real

The effect of non-Hermiticity in band topology has sparked many discussions on non-Hermitian topological physics. It has long been known that non-Hermitian Hamiltonians can exhibit real energy spectra under the condition of parity-time (PT) symmetry - commonly implemented with balanced loss and gain...

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Bibliographic Details
Main Authors: Long, Yang, Xue, Haoran, Zhang, Baile
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2022
Subjects:
Online Access:https://hdl.handle.net/10356/156861
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Institution: Nanyang Technological University
Language: English