Non-Hermitian dirac cones

Non-Hermitian systems containing gain or loss commonly host exceptional point degeneracies, not the diabolic points that, in Hermitian systems, play a key role in topological transitions and related phenomena. Non-Hermitian Hamiltonians with parity-time symmetry can have real spectra but generally n...

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Bibliographic Details
Main Authors: Xue, Haoran, Wang, Qiang, Zhang, Baile, Chong, Yidong
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2020
Subjects:
Online Access:https://hdl.handle.net/10356/145069
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Institution: Nanyang Technological University
Language: English