Active topolectrical circuits
<jats:title>Significance</jats:title> <jats:p>Originally discovered in condensed-matter physics, topological protection has become a unifying paradigm for understanding robust localized wave propagation in electronic, optical, acoustic, and even geophysical systems. The...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Proceedings of the National Academy of Sciences
2022
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| Online Access: | https://hdl.handle.net/1721.1/145674 |
| _version_ | 1826188376398626816 |
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| author | Kotwal, Tejas Moseley, Fischer Stegmaier, Alexander Imhof, Stefan Brand, Hauke Kießling, Tobias Thomale, Ronny Ronellenfitsch, Henrik Dunkel, Jörn |
| author2 | Massachusetts Institute of Technology. Department of Mathematics |
| author_facet | Massachusetts Institute of Technology. Department of Mathematics Kotwal, Tejas Moseley, Fischer Stegmaier, Alexander Imhof, Stefan Brand, Hauke Kießling, Tobias Thomale, Ronny Ronellenfitsch, Henrik Dunkel, Jörn |
| author_sort | Kotwal, Tejas |
| collection | MIT |
| description | <jats:title>Significance</jats:title>
<jats:p>Originally discovered in condensed-matter physics, topological protection has become a unifying paradigm for understanding robust localized wave propagation in electronic, optical, acoustic, and even geophysical systems. The excitation of topologically protected waves in passive matter typically requires external forcing in a specific frequency range. Here, we show both theoretically and experimentally that robust topological edge modes can be spontaneously self-excited in active systems made from internally powered subunits. Presenting different realizations of active nonlinear electronic circuits, we demonstrate the emergence of self-organized topological wave patterns, in close agreement with predictions from a generic mathematical model. More broadly, these results can provide guidance for designing autonomous active systems with topologically protected signaling and transmission properties.</jats:p> |
| first_indexed | 2024-09-23T07:58:22Z |
| format | Article |
| id | mit-1721.1/145674 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T07:58:22Z |
| publishDate | 2022 |
| publisher | Proceedings of the National Academy of Sciences |
| record_format | dspace |
| spelling | mit-1721.1/1456742022-10-05T03:49:24Z Active topolectrical circuits Kotwal, Tejas Moseley, Fischer Stegmaier, Alexander Imhof, Stefan Brand, Hauke Kießling, Tobias Thomale, Ronny Ronellenfitsch, Henrik Dunkel, Jörn Massachusetts Institute of Technology. Department of Mathematics <jats:title>Significance</jats:title> <jats:p>Originally discovered in condensed-matter physics, topological protection has become a unifying paradigm for understanding robust localized wave propagation in electronic, optical, acoustic, and even geophysical systems. The excitation of topologically protected waves in passive matter typically requires external forcing in a specific frequency range. Here, we show both theoretically and experimentally that robust topological edge modes can be spontaneously self-excited in active systems made from internally powered subunits. Presenting different realizations of active nonlinear electronic circuits, we demonstrate the emergence of self-organized topological wave patterns, in close agreement with predictions from a generic mathematical model. More broadly, these results can provide guidance for designing autonomous active systems with topologically protected signaling and transmission properties.</jats:p> 2022-10-04T18:07:16Z 2022-10-04T18:07:16Z 2021 2022-10-04T17:57:14Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/145674 Kotwal, Tejas, Moseley, Fischer, Stegmaier, Alexander, Imhof, Stefan, Brand, Hauke et al. 2021. "Active topolectrical circuits." Proceedings of the National Academy of Sciences of the United States of America, 118 (32). en 10.1073/PNAS.2106411118 Proceedings of the National Academy of Sciences of the United States of America Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf Proceedings of the National Academy of Sciences PNAS |
| spellingShingle | Kotwal, Tejas Moseley, Fischer Stegmaier, Alexander Imhof, Stefan Brand, Hauke Kießling, Tobias Thomale, Ronny Ronellenfitsch, Henrik Dunkel, Jörn Active topolectrical circuits |
| title | Active topolectrical circuits |
| title_full | Active topolectrical circuits |
| title_fullStr | Active topolectrical circuits |
| title_full_unstemmed | Active topolectrical circuits |
| title_short | Active topolectrical circuits |
| title_sort | active topolectrical circuits |
| url | https://hdl.handle.net/1721.1/145674 |
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