Nature Communications (Nov 2021)

Acoustic non-Hermitian skin effect from twisted winding topology

  • Li Zhang,
  • Yihao Yang,
  • Yong Ge,
  • Yi-Jun Guan,
  • Qiaolu Chen,
  • Qinghui Yan,
  • Fujia Chen,
  • Rui Xi,
  • Yuanzhen Li,
  • Ding Jia,
  • Shou-Qi Yuan,
  • Hong-Xiang Sun,
  • Hongsheng Chen,
  • Baile Zhang

DOI
https://doi.org/10.1038/s41467-021-26619-8
Journal volume & issue
Vol. 12, no. 1
pp. 1 – 7

Abstract

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Non-Hermitian skin effect fundamentally challenges the conventional topological description of a system. Here the authors demonstrate a bipolar non-Hermitian skin effect, where bulk eigenstates localize towards two directions, in a one-dimensional non-reciprocal acoustic crystal with twisted topology.