Nature Communications (Sep 2021)

Observation of higher-order non-Hermitian skin effect

  • Xiujuan Zhang,
  • Yuan Tian,
  • Jian-Hua Jiang,
  • Ming-Hui Lu,
  • Yan-Feng Chen

DOI
https://doi.org/10.1038/s41467-021-25716-y
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 8

Abstract

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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.