Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation
Quantum anomalous Hall insulator/superconductor heterostructures emerged as a competitive platform to realize topological superconductors with chiral Majorana edge states as shown in recent experiments [He et al. Science 357, 294 (2017)]. However, chiral Majorana modes, being extended, cannot be use...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society
2018
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| Online Access: | http://hdl.handle.net/1721.1/114445 https://orcid.org/0000-0001-7809-8157 |
| _version_ | 1811091456715128832 |
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| author | Chen, Chui-Zhen Xie, Ying-Ming Liu, Jie Law, K. T. Lee, Patrick A |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Chen, Chui-Zhen Xie, Ying-Ming Liu, Jie Law, K. T. Lee, Patrick A |
| author_sort | Chen, Chui-Zhen |
| collection | MIT |
| description | Quantum anomalous Hall insulator/superconductor heterostructures emerged as a competitive platform to realize topological superconductors with chiral Majorana edge states as shown in recent experiments [He et al. Science 357, 294 (2017)]. However, chiral Majorana modes, being extended, cannot be used for topological quantum computation. In this work, we show that quasi-one-dimensional quantum anomalous Hall structures exhibit a large topological regime (much larger than the two-dimensional case) which supports localized Majorana zero energy modes. The non-Abelian properties of a cross-shaped quantum anomalous Hall junction is shown explicitly by time-dependent calculations. We believe that the proposed quasi-one-dimensional quantum anomalous Hall structures can be easily fabricated for scalable topological quantum computation. |
| first_indexed | 2024-09-23T15:02:42Z |
| format | Article |
| id | mit-1721.1/114445 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T15:02:42Z |
| publishDate | 2018 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1144452022-09-29T12:16:03Z Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation Chen, Chui-Zhen Xie, Ying-Ming Liu, Jie Law, K. T. Lee, Patrick A Massachusetts Institute of Technology. Department of Physics Lee, Patrick A Quantum anomalous Hall insulator/superconductor heterostructures emerged as a competitive platform to realize topological superconductors with chiral Majorana edge states as shown in recent experiments [He et al. Science 357, 294 (2017)]. However, chiral Majorana modes, being extended, cannot be used for topological quantum computation. In this work, we show that quasi-one-dimensional quantum anomalous Hall structures exhibit a large topological regime (much larger than the two-dimensional case) which supports localized Majorana zero energy modes. The non-Abelian properties of a cross-shaped quantum anomalous Hall junction is shown explicitly by time-dependent calculations. We believe that the proposed quasi-one-dimensional quantum anomalous Hall structures can be easily fabricated for scalable topological quantum computation. United States. Department of Energy (Grant FG02-03 ER46076) 2018-03-29T17:14:13Z 2018-03-29T17:14:13Z 2018-03 2018-01 2018-03-15T18:00:42Z Article http://purl.org/eprint/type/JournalArticle 2469-9950 2469-9969 http://hdl.handle.net/1721.1/114445 Chen, Chui-Zhen, et al. “Quasi-One-Dimensional Quantum Anomalous Hall Systems as New Platforms for Scalable Topological Quantum Computation.” Physical Review B, vol. 97, no. 10, Mar. 2018. © 2018 American Physical Society https://orcid.org/0000-0001-7809-8157 en http://dx.doi.org/10.1103/PhysRevB.97.104504 Physical Review B 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. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Chen, Chui-Zhen Xie, Ying-Ming Liu, Jie Law, K. T. Lee, Patrick A Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation |
| title | Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation |
| title_full | Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation |
| title_fullStr | Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation |
| title_full_unstemmed | Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation |
| title_short | Quasi-one-dimensional quantum anomalous Hall systems as new platforms for scalable topological quantum computation |
| title_sort | quasi one dimensional quantum anomalous hall systems as new platforms for scalable topological quantum computation |
| url | http://hdl.handle.net/1721.1/114445 https://orcid.org/0000-0001-7809-8157 |
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