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

oleh: He Gao, Haoran Xue, Zhongming Gu, Tuo Liu, Jie Zhu, Baile Zhang

Format: Article
Diterbitkan: Nature Portfolio 2021-03-01

Deskripsi

Losses, due to their non-Hermitian nature, are generally disregarded or even considered harmful when looking for non-trivial topological phases. Here, the authors experimentally demonstrate that higher-order topology can emerge as a result of introducing losses in an acoustic crystal.