Role of Majorana fermions in high-harmonic generation from Kitaev chain
Abstract The observation of Majorana fermions as collective excitations in condensed-matter systems is an ongoing quest, and several state-of-the-art experiments have been performed in the last decade. As a potential avenue in this direction, we simulate the high-harmonic spectrum of Kitaev’s superc...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-10465-9 |
| _version_ | 1828370694078988288 |
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| author | Adhip Pattanayak Sumiran Pujari Gopal Dixit |
| author_facet | Adhip Pattanayak Sumiran Pujari Gopal Dixit |
| author_sort | Adhip Pattanayak |
| collection | DOAJ |
| description | Abstract The observation of Majorana fermions as collective excitations in condensed-matter systems is an ongoing quest, and several state-of-the-art experiments have been performed in the last decade. As a potential avenue in this direction, we simulate the high-harmonic spectrum of Kitaev’s superconducting chain model that hosts Majorana edge modes in its topological phase. It is well-known that this system exhibits a topological–trivial superconducting phase transition. We demonstrate that high-harmonic spectroscopy is sensitive to the phase transition in presence of open boundary conditions due to the presence or absence of these edge modes. The population dynamics of the Majorana edge modes are different from the bulk modes, which is the underlying reason for the distinct harmonic profile of both the phases. On the contrary, in presence of periodic boundary conditions with only bulk modes, high-harmonic spectroscopy becomes insensitive to the phase transition with similar harmonic profiles in both phases. |
| first_indexed | 2024-04-14T06:41:47Z |
| format | Article |
| id | doaj.art-1ed2540c9d5c45168975f017b65a98ae |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-14T06:41:47Z |
| publishDate | 2022-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-1ed2540c9d5c45168975f017b65a98ae2022-12-22T02:07:19ZengNature PortfolioScientific Reports2045-23222022-04-011211710.1038/s41598-022-10465-9Role of Majorana fermions in high-harmonic generation from Kitaev chainAdhip Pattanayak0Sumiran Pujari1Gopal Dixit2Department of Physics, Indian Institute of Technology BombayDepartment of Physics, Indian Institute of Technology BombayDepartment of Physics, Indian Institute of Technology BombayAbstract The observation of Majorana fermions as collective excitations in condensed-matter systems is an ongoing quest, and several state-of-the-art experiments have been performed in the last decade. As a potential avenue in this direction, we simulate the high-harmonic spectrum of Kitaev’s superconducting chain model that hosts Majorana edge modes in its topological phase. It is well-known that this system exhibits a topological–trivial superconducting phase transition. We demonstrate that high-harmonic spectroscopy is sensitive to the phase transition in presence of open boundary conditions due to the presence or absence of these edge modes. The population dynamics of the Majorana edge modes are different from the bulk modes, which is the underlying reason for the distinct harmonic profile of both the phases. On the contrary, in presence of periodic boundary conditions with only bulk modes, high-harmonic spectroscopy becomes insensitive to the phase transition with similar harmonic profiles in both phases.https://doi.org/10.1038/s41598-022-10465-9 |
| spellingShingle | Adhip Pattanayak Sumiran Pujari Gopal Dixit Role of Majorana fermions in high-harmonic generation from Kitaev chain Scientific Reports |
| title | Role of Majorana fermions in high-harmonic generation from Kitaev chain |
| title_full | Role of Majorana fermions in high-harmonic generation from Kitaev chain |
| title_fullStr | Role of Majorana fermions in high-harmonic generation from Kitaev chain |
| title_full_unstemmed | Role of Majorana fermions in high-harmonic generation from Kitaev chain |
| title_short | Role of Majorana fermions in high-harmonic generation from Kitaev chain |
| title_sort | role of majorana fermions in high harmonic generation from kitaev chain |
| url | https://doi.org/10.1038/s41598-022-10465-9 |
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