Higher order topological superconductivity in magnet-superconductor hybrid systems
Abstract Quantum engineering of topological superconductors and of the ensuing Majorana zero modes might hold the key for realizing topological quantum computing and topology-based devices. Magnet-superconductor hybrid (MSH) systems have proven to be experimentally versatile platforms for the creati...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2023-06-01
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| Series: | npj Quantum Materials |
| Online Access: | https://doi.org/10.1038/s41535-023-00564-9 |
| _version_ | 1797801558974398464 |
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| author | Ka Ho Wong Mark R. Hirsbrunner Jacopo Gliozzi Arbaz Malik Barry Bradlyn Taylor L. Hughes Dirk K. Morr |
| author_facet | Ka Ho Wong Mark R. Hirsbrunner Jacopo Gliozzi Arbaz Malik Barry Bradlyn Taylor L. Hughes Dirk K. Morr |
| author_sort | Ka Ho Wong |
| collection | DOAJ |
| description | Abstract Quantum engineering of topological superconductors and of the ensuing Majorana zero modes might hold the key for realizing topological quantum computing and topology-based devices. Magnet-superconductor hybrid (MSH) systems have proven to be experimentally versatile platforms for the creation of topological superconductivity by custom-designing the complex structure of their magnetic layer. Here, we demonstrate that higher order topological superconductivity (HOTSC) can be realized in two-dimensional MSH systems by using stacked magnetic structures. We show that the sensitivity of the HOTSC to the particular magnetic stacking opens an intriguing ability to tune the system between trivial and topological phases using atomic manipulation techniques. We propose that the realization of HOTSC in MSH systems, and in particular the existence of the characteristic Majorana corner modes, allows for the implementation of a measurement-based protocols for topological quantum computing. |
| first_indexed | 2024-03-13T04:52:43Z |
| format | Article |
| id | doaj.art-2bfcd0265f6944a899cf1de1e1f2eab2 |
| institution | Directory Open Access Journal |
| issn | 2397-4648 |
| language | English |
| last_indexed | 2024-03-13T04:52:43Z |
| publishDate | 2023-06-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Quantum Materials |
| spelling | doaj.art-2bfcd0265f6944a899cf1de1e1f2eab22023-06-18T11:05:48ZengNature Portfolionpj Quantum Materials2397-46482023-06-01811710.1038/s41535-023-00564-9Higher order topological superconductivity in magnet-superconductor hybrid systemsKa Ho Wong0Mark R. Hirsbrunner1Jacopo Gliozzi2Arbaz Malik3Barry Bradlyn4Taylor L. Hughes5Dirk K. Morr6Department of Physics, University of Illinois at ChicagoDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at ChicagoDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at Urbana-ChampaignDepartment of Physics, University of Illinois at ChicagoAbstract Quantum engineering of topological superconductors and of the ensuing Majorana zero modes might hold the key for realizing topological quantum computing and topology-based devices. Magnet-superconductor hybrid (MSH) systems have proven to be experimentally versatile platforms for the creation of topological superconductivity by custom-designing the complex structure of their magnetic layer. Here, we demonstrate that higher order topological superconductivity (HOTSC) can be realized in two-dimensional MSH systems by using stacked magnetic structures. We show that the sensitivity of the HOTSC to the particular magnetic stacking opens an intriguing ability to tune the system between trivial and topological phases using atomic manipulation techniques. We propose that the realization of HOTSC in MSH systems, and in particular the existence of the characteristic Majorana corner modes, allows for the implementation of a measurement-based protocols for topological quantum computing.https://doi.org/10.1038/s41535-023-00564-9 |
| spellingShingle | Ka Ho Wong Mark R. Hirsbrunner Jacopo Gliozzi Arbaz Malik Barry Bradlyn Taylor L. Hughes Dirk K. Morr Higher order topological superconductivity in magnet-superconductor hybrid systems npj Quantum Materials |
| title | Higher order topological superconductivity in magnet-superconductor hybrid systems |
| title_full | Higher order topological superconductivity in magnet-superconductor hybrid systems |
| title_fullStr | Higher order topological superconductivity in magnet-superconductor hybrid systems |
| title_full_unstemmed | Higher order topological superconductivity in magnet-superconductor hybrid systems |
| title_short | Higher order topological superconductivity in magnet-superconductor hybrid systems |
| title_sort | higher order topological superconductivity in magnet superconductor hybrid systems |
| url | https://doi.org/10.1038/s41535-023-00564-9 |
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