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Non-Hermitian route to higher-order topology in an acoustic crystal

Topological phases of matter are classified based on their Hermitian Hamiltonians, whose real-valued dispersions together with orthogonal eigenstates form nontrivial topology. In the recently discovered higher-order topological insulators (TIs), the bulk topology can even exhibit hierarchical featur...

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Detalhes bibliográficos
Publicado no:Nat Commun
Main Authors: Gao, He, Xue, Haoran, Gu, Zhongming, Liu, Tuo, Zhu, Jie, Zhang, Baile
Formato: Artigo
Idioma:Inglês
Publicado em: Nature Publishing Group UK 2021
Assuntos:
Acesso em linha:https://ncbi.nlm.nih.gov/pmc/articles/PMC7994416/
https://ncbi.nlm.nih.gov/pubmed/33767167
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1038/s41467-021-22223-y
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