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 ci...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-10-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.043034 |
| _version_ | 1797210394155024384 |
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| author | Bin Liu Yang Li Bin Yang Xiaopeng Shen Yuting Yang Zhi Hong Hang Motohiko Ezawa |
| author_facet | Bin Liu Yang Li Bin Yang Xiaopeng Shen Yuting Yang Zhi Hong Hang Motohiko Ezawa |
| author_sort | Bin Liu |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-24T10:09:54Z |
| format | Article |
| id | doaj.art-b112790e5268495681005e1e4f08dc76 |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:09:54Z |
| publishDate | 2023-10-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-b112790e5268495681005e1e4f08dc762024-04-12T17:34:56ZengAmerican Physical SocietyPhysical Review Research2643-15642023-10-015404303410.1103/PhysRevResearch.5.043034Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuitsBin LiuYang LiBin YangXiaopeng ShenYuting YangZhi Hong HangMotohiko EzawaThe 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.http://doi.org/10.1103/PhysRevResearch.5.043034 |
| spellingShingle | Bin Liu Yang Li Bin Yang Xiaopeng Shen Yuting Yang Zhi Hong Hang Motohiko Ezawa Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits Physical Review Research |
| title | Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits |
| title_full | Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits |
| title_fullStr | Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits |
| title_full_unstemmed | Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits |
| title_short | Experimental observation of non-Hermitian higher-order skin interface states in topological electric circuits |
| title_sort | experimental observation of non hermitian higher order skin interface states in topological electric circuits |
| url | http://doi.org/10.1103/PhysRevResearch.5.043034 |
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