Observation of higher-order non-Hermitian skin effect

Though non-Hermitian physics has contributed toward the advance of research in quantum, electronic and classical systems, previous work focused on zero- or one-dimensional systems. Here, the authors report higher-order non-Hermitian skin effects in a 2D acoustic higher-order topological insulator.

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Auteurs principaux: Xiujuan Zhang, Yuan Tian, Jian-Hua Jiang, Ming-Hui Lu, Yan-Feng Chen
Format: article
Langue:EN
Publié: Nature Portfolio 2021
Sujets:
Q
Accès en ligne:https://doaj.org/article/20b1fa8bef694c56aa36c4df1c7e3d84
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Résumé:Though non-Hermitian physics has contributed toward the advance of research in quantum, electronic and classical systems, previous work focused on zero- or one-dimensional systems. Here, the authors report higher-order non-Hermitian skin effects in a 2D acoustic higher-order topological insulator.