Majorana bound states in a quantum dot device coupled with a superconductor zigzag chain
Research in condensed matter physics on topological insulators and superconductors has contributed greatly to the characterization of the surface properties and zero modes of nanowires. In this work we investigated theoretically, using the recursive Green’s function approach, electron transport thro...
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| Veröffentlicht in: | Journal of computational electronics 2018-09, Vol.17 (3), p.959-966 |
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| container_title | Journal of computational electronics |
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| creator | Beirão, Antonio T. M. Costa, Miraci Silva Oliveira, Alexandre de S. da C. Cunha, Jorsi J. da Silva, Shirsley S. Del Nero, Jordan |
| description | Research in condensed matter physics on topological insulators and superconductors has contributed greatly to the characterization of the surface properties and zero modes of nanowires. In this work we investigated theoretically, using the recursive Green’s function approach, electron transport through a T-shaped single-level spinless quantum dot, connected to a zigzag chain and coupled to a
p
-wave superconductor. This model is an extension of the Kitaev chain for a triangular network of finite size with three, four, and five sites. We found that the Majorana zero modes can be tuned through the coupling parameters of the device and that the linear conductance shows Majorana bound states (MBS) in the topological phase, being maximally robust in the general topological phase. This more realistic model permits the detection of MBS via control of the parameters governing the electronic tunneling and could be helpful for relevant experiments. |
| doi_str_mv | 10.1007/s10825-018-1206-9 |
| format | Article |
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p
-wave superconductor. This model is an extension of the Kitaev chain for a triangular network of finite size with three, four, and five sites. We found that the Majorana zero modes can be tuned through the coupling parameters of the device and that the linear conductance shows Majorana bound states (MBS) in the topological phase, being maximally robust in the general topological phase. This more realistic model permits the detection of MBS via control of the parameters governing the electronic tunneling and could be helpful for relevant experiments.</description><identifier>ISSN: 1569-8025</identifier><identifier>EISSN: 1572-8137</identifier><identifier>DOI: 10.1007/s10825-018-1206-9</identifier><language>eng</language><publisher>New York: Springer US</publisher><subject>Atoms & subatomic particles ; Condensed matter physics ; Electrical Engineering ; Electron transport ; Electrons ; Engineering ; Green's functions ; Mathematical and Computational Engineering ; Mathematical and Computational Physics ; Mathematical models ; Mechanical Engineering ; Nanowires ; Optical and Electronic Materials ; P waves ; Parameters ; Phase transitions ; Quantum dots ; Recursive functions ; Superconductors ; Surface properties ; Theoretical ; Topological insulators</subject><ispartof>Journal of computational electronics, 2018-09, Vol.17 (3), p.959-966</ispartof><rights>Springer Science+Business Media, LLC, part of Springer Nature 2018</rights><rights>Springer Science+Business Media, LLC, part of Springer Nature 2018.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-78a73ecd9feb7c4cea776ff657eb9aed2c38122ef500b4a3c1bb79cbae458aca3</citedby><cites>FETCH-LOGICAL-c316t-78a73ecd9feb7c4cea776ff657eb9aed2c38122ef500b4a3c1bb79cbae458aca3</cites><orcidid>0000-0003-1366-5995 ; 0000-0001-8087-8427</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10825-018-1206-9$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://www.proquest.com/docview/2918273616?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,21386,27922,27923,33742,41486,42555,43803,51317,64383,64387,72239</link.rule.ids></links><search><creatorcontrib>Beirão, Antonio T. M.</creatorcontrib><creatorcontrib>Costa, Miraci Silva</creatorcontrib><creatorcontrib>Oliveira, Alexandre de S.</creatorcontrib><creatorcontrib>da C. Cunha, Jorsi J.</creatorcontrib><creatorcontrib>da Silva, Shirsley S.</creatorcontrib><creatorcontrib>Del Nero, Jordan</creatorcontrib><title>Majorana bound states in a quantum dot device coupled with a superconductor zigzag chain</title><title>Journal of computational electronics</title><addtitle>J Comput Electron</addtitle><description>Research in condensed matter physics on topological insulators and superconductors has contributed greatly to the characterization of the surface properties and zero modes of nanowires. In this work we investigated theoretically, using the recursive Green’s function approach, electron transport through a T-shaped single-level spinless quantum dot, connected to a zigzag chain and coupled to a
p
-wave superconductor. This model is an extension of the Kitaev chain for a triangular network of finite size with three, four, and five sites. We found that the Majorana zero modes can be tuned through the coupling parameters of the device and that the linear conductance shows Majorana bound states (MBS) in the topological phase, being maximally robust in the general topological phase. 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p
-wave superconductor. This model is an extension of the Kitaev chain for a triangular network of finite size with three, four, and five sites. We found that the Majorana zero modes can be tuned through the coupling parameters of the device and that the linear conductance shows Majorana bound states (MBS) in the topological phase, being maximally robust in the general topological phase. This more realistic model permits the detection of MBS via control of the parameters governing the electronic tunneling and could be helpful for relevant experiments.</abstract><cop>New York</cop><pub>Springer US</pub><doi>10.1007/s10825-018-1206-9</doi><tpages>8</tpages><orcidid>https://orcid.org/0000-0003-1366-5995</orcidid><orcidid>https://orcid.org/0000-0001-8087-8427</orcidid></addata></record> |
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| subjects | Atoms & subatomic particles Condensed matter physics Electrical Engineering Electron transport Electrons Engineering Green's functions Mathematical and Computational Engineering Mathematical and Computational Physics Mathematical models Mechanical Engineering Nanowires Optical and Electronic Materials P waves Parameters Phase transitions Quantum dots Recursive functions Superconductors Surface properties Theoretical Topological insulators |
| title | Majorana bound states in a quantum dot device coupled with a superconductor zigzag chain |
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