Edge Modes, Degeneracies, and Topological Numbers in Non-Hermitian Systems

Edge Modes, Degeneracies, and Topological Numbers in Non-Hermitian Systems

We analyze chiral topological edge modes in a non-Hermitian variant of the 2D Dirac equation. Such modes appear at interfaces between media with different “masses” and/or signs of the “non-Hermitian charge.” The existence of these edge modes is intimately related to exceptional points of the bulk Ha...

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Bibliographic Details
Main Authors: Chong, Yi Dong, Nori, Franco, Leykam, Daniel, Bliokh, Konstantin Y., Huang, Chunli
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2017
Subjects:
Honeycomb structures
Linear equations
Online Access:https://hdl.handle.net/10356/83306
http://hdl.handle.net/10220/42547
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Institution: Nanyang Technological University
Language: English

Internet

https://hdl.handle.net/10356/83306
http://hdl.handle.net/10220/42547

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