Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits
Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits
The study of topological states has developed rapidly in electric circuits, which permits flexible fabrications of non-Hermitian systems by introducing non-Hermitian terms. Here, nonreciprocal coupling terms are realized by utilizing a voltage follower module in non-Hermitian topological electric circuits. We report the experimental realization of one- and two- dimensional non-Hermitian skin interface states in electric circuits, where interface states induced by non-Hermitian skin effects are localized at the interface of different domains carrying different winding numbers. Our electric circuit system provides a readily accessible platform to explore non-Hermitian-induced topological phases, and paves a new road for device applications.
Bin Liu、Motohiko Ezawa、Yuting Yang、Yang Li、Xiaopeng Shen、Zhi Hong Hang、Bin Yang
School of Materials Science and Physics, China University of Mining and TechnologyDepartment of Applied Physics, University of TokyoSchool of Materials Science and Physics, China University of Mining and TechnologySchool of Materials Science and Physics, China University of Mining and TechnologySchool of Materials Science and Physics, China University of Mining and TechnologySchool of Physical Science and Technology & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow UniversitySchool of Materials Science and Physics, China University of Mining and Technology
10.1103/PhysRevResearch.5.043034
电子电路物理学电工基础理论
Bin Liu,Motohiko Ezawa,Yuting Yang,Yang Li,Xiaopeng Shen,Zhi Hong Hang,Bin Yang.Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits[EB/OL].(2023-06-23)[2025-08-16].https://arxiv.org/abs/2306.13454.点此复制
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