期刊
PHYSICAL REVIEW LETTERS
卷 121, 期 12, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.121.124501
关键词
-
资金
- National Key Research Program of China [2016YFA0301101]
- National Natural Science Foundation of China [11704284, 11775159, 61621001, 11674247]
- Shanghai Science and Technology Committee [18JC1410900]
- Shanghai Pujiang Program [17PJ1409000]
- Tongji University
This Letter reports on the experimental observation of a topologically protected edge state and exceptional point in an open and non-Hermitian (lossy) acoustic system. Although the theoretical underpinning is generic to wave physics, the simulations and experiments are performed for an acoustic system. It has nontrivial topological properties that can be characterized by the Chern number provided that a synthetic dimension is introduced. Unidirectional reflectionless propagation, a hallmark of exceptional points, is unambiguously observed in both simulations and experiments.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据