Exceptional points in a non-Hermitian topological pump
We investigate the effects of non-Hermiticity on topological pumping and uncover a connection between a topological edge invariant based on topological pumping and the winding numbers of exceptional points. In Hermitian lattices, it is known that the topologically nontrivial regime of the topologica...
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Main Authors: | Hu, Wenchao, Wang, Hailong, Shum, Perry Ping, Chong, Yi Dong |
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Other Authors: | School of Electrical and Electronic Engineering |
Format: | Article |
Language: | English |
Published: |
2018
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Subjects: | |
Online Access: | https://hdl.handle.net/10356/80713 http://hdl.handle.net/10220/46593 |
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Institution: | Nanyang Technological University |
Language: | English |
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