Experimental demonstration of anomalous Floquet topological insulator for sound

oleh: Yu-Gui Peng, Cheng-Zhi Qin, De-Gang Zhao, Ya-Xi Shen, Xiang-Yuan Xu, Ming Bao, Han Jia, Xue-Feng Zhu

Format: Article
Diterbitkan: Nature Portfolio 2016-11-01

Deskripsi

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.