Experimental demonstration of anomalous Floquet topological insulator for sound

Topological protected acoustic wave propagation has been predicted, but yet awaits for experimental demonstration. Here, Peng et al. report one-way propagation of pseudo-spin-dependent edge states for sound, analogous to Floquet topological insulator in solid state.

Bibliographic Details
Main Authors: Yu-Gui Peng, Cheng-Zhi Qin, De-Gang Zhao, Ya-Xi Shen, Xiang-Yuan Xu, Ming Bao, Han Jia, Xue-Feng Zhu
Format: Article
Language:English
Published: Nature Publishing Group 2016-11-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/ncomms13368