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The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Anomalous Edge State in a Non-Hermitian Lattice

Open access
Lee, Tony E.·2016·Physical Review Letters

Abstract

We show that the bulk-boundary correspondence for topological insulators can be modified in the presence of non-Hermiticity. We consider a one-dimensional tight-binding model with gain and loss as well as long-range hopping. The system is described by a non-Hermitian Hamiltonian that encircles an exceptional point in momentum space. The winding number has a fractional value of 1/2. There is only one dynamically stable zero-energy edge state due to the defectiveness of the Hamiltonian. This edge state is robust to disorder due to protection by a chiral symmetry. We also discuss experimental realization with arrays of coupled resonator optical waveguides.

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Metadata

Authors
Lee, T. E.
Venue
Physical Review Letters
Published
2016-04-01
Volume
116
Issue
13
Pages
133903-133903
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W2297830556
Cited by
1,065
References
7
FWCI
24.77
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Anomalous Edge State in a Non-Hermitian Lattice. https://app.cochat.ai/papers/10.1103/physrevlett.116.133903
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Lee, T. E. (2016). Anomalous Edge State in a Non-Hermitian Lattice. Physical Review Letters. https://doi.org/10.1103/physrevlett.116.133903

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.