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Cited by 257

The DOI matches its Crossref record; 41 of the 41 references it cites were found in a registry or an index.

Photonic topological insulator with broken time-reversal symmetry

Open access
He, Cheng, Sun, Xiao-Chen, Liu, Xiao-Ping, Lu, Ming-Hui, Chen, Yulin, Feng, Liang, Chen, Yan-Feng·2016·Proceedings of the National Academy of Sciences

Abstract

Significance: Topological insulators are first discovered in electronic systems. A key factor is the Kramers doublet for the spin-1/2 electrons under fermionic time-reversal symmetry T f 2 = − 1 . Unlike electrons, photons are massless bosons with spin-1. Therefore, the Kramers degeneracy theorem cannot readily apply to photons under the bosonic time-reversal symmetry. So far, there has been no coherent physical explanation for the symmetry protection mechanism behind the photonic topological insulator. Here, we design a photonic topological insulator that violates the bosonic time-reversal symmetry but complies with a fermionic-like pseudo time-reversal symmetry. The analyses and results, through comprehensive investigations on the properties of edge states, validate that the topological edge states are, in fact, protected by the fermionic-like pseudo time-reversal symmetry T p ( T p 2 = − 1 ).

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Metadata

Authors
He, C., Sun, X.-C., Liu, X.-P., Lu, M.-H., Chen, Y., Feng, L., & Chen, Y.-F.
Venue
Proceedings of the National Academy of Sciences
Published
2016-04-18
Volume
113
Issue
18
Pages
4924-4928
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2338277331
Cited by
257
References
41
FWCI
15.88
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Photonic topological insulator with broken time-reversal symmetry. https://app.cochat.ai/papers/10.1073/pnas.1525502113
The paper
He, C., Sun, X.-C., Liu, X.-P., Lu, M.-H., Chen, Y., Feng, L., & Chen, Y.-F. (2016). Photonic topological insulator with broken time-reversal symmetry. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.1525502113

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

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