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The topological counterparts of non-Hermitian SSH models

Inspired by the relevance between the asymmetric coupling amplitude and the imaginary gauge field, we construct the counterpart of the non-Hermitian SSH model. The idea is the nonzero imaginary magnetic flux vanishing when the boundary condition changes from periodic to open. The zero imaginary magn...

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Main Authors: Y Z Han, J S Liu, C S Liu
Format: Artigo
Language:Inglês
Published: IOP Publishing 2021-01-01
Series:New Journal of Physics
Subjects:
non-Hermitian skin effect
non-Bloch bulk-boundary correspondence
non-Hermitian SSH model
non-Hermitian Aharonov–Bohm effect
topological invariant
Online Access:https://doi.org/10.1088/1367-2630/ac3e9f
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