Topological isoconductance signatures in Majorana nanowires
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1038/s41598-021-96415-3 http://hdl.handle.net/11449/229414 |
Resumo: | We consider transport properties of a hybrid device composed by a quantum dot placed between normal and superconducting reservoirs, and coupled to a Majorana nanowire: a topological superconducting segment hosting Majorana bound states (MBSs) at the opposite ends. It is demonstrated that if highly nonlocal and nonoverlapping MBSs are formed in the system, the zero-bias Andreev conductance through the dot exhibits characteristic isoconductance profiles with the shape depending on the spin asymmetry of the coupling between the dot and the topological superconductor. Otherwise, for overlapping MBSs with less degree of nonlocality, the conductance is insensitive to the spin polarization and the isoconductance signatures disappear. This allows to propose an alternative experimental protocol for probing the nonlocality of the MBSs in Majorana nanowires. |
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Repositório Institucional da UNESP |
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Topological isoconductance signatures in Majorana nanowiresWe consider transport properties of a hybrid device composed by a quantum dot placed between normal and superconducting reservoirs, and coupled to a Majorana nanowire: a topological superconducting segment hosting Majorana bound states (MBSs) at the opposite ends. It is demonstrated that if highly nonlocal and nonoverlapping MBSs are formed in the system, the zero-bias Andreev conductance through the dot exhibits characteristic isoconductance profiles with the shape depending on the spin asymmetry of the coupling between the dot and the topological superconductor. Otherwise, for overlapping MBSs with less degree of nonlocality, the conductance is insensitive to the spin polarization and the isoconductance signatures disappear. This allows to propose an alternative experimental protocol for probing the nonlocality of the MBSs in Majorana nanowires.Science Institute University of Iceland, Dunhagi-3School of Engineering Department of Physics and Chemistry São Paulo State University (Unesp)Department of Physics ITMO UniversityDepartment of Physics São Paulo State University (Unesp) IGCEInstituto de Física Universidade Federal FluminenseSchool of Engineering Department of Physics and Chemistry São Paulo State University (Unesp)Department of Physics São Paulo State University (Unesp) IGCEUniversity of IcelandUniversidade Estadual Paulista (UNESP)ITMO UniversityUniversidade Federal Fluminense (UFF)Ricco, L. S.Sanches, J. E. [UNESP]Marques, Y.de Souza, M. [UNESP]Figueira, M. S.Shelykh, I. A.Seridonio, A. C. [UNESP]2022-04-29T08:32:29Z2022-04-29T08:32:29Z2021-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1038/s41598-021-96415-3Scientific Reports, v. 11, n. 1, 2021.2045-2322http://hdl.handle.net/11449/22941410.1038/s41598-021-96415-32-s2.0-85113741239Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengScientific Reportsinfo:eu-repo/semantics/openAccess2022-04-29T08:32:29Zoai:repositorio.unesp.br:11449/229414Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T08:32:29Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Topological isoconductance signatures in Majorana nanowires |
title |
Topological isoconductance signatures in Majorana nanowires |
spellingShingle |
Topological isoconductance signatures in Majorana nanowires Ricco, L. S. |
title_short |
Topological isoconductance signatures in Majorana nanowires |
title_full |
Topological isoconductance signatures in Majorana nanowires |
title_fullStr |
Topological isoconductance signatures in Majorana nanowires |
title_full_unstemmed |
Topological isoconductance signatures in Majorana nanowires |
title_sort |
Topological isoconductance signatures in Majorana nanowires |
author |
Ricco, L. S. |
author_facet |
Ricco, L. S. Sanches, J. E. [UNESP] Marques, Y. de Souza, M. [UNESP] Figueira, M. S. Shelykh, I. A. Seridonio, A. C. [UNESP] |
author_role |
author |
author2 |
Sanches, J. E. [UNESP] Marques, Y. de Souza, M. [UNESP] Figueira, M. S. Shelykh, I. A. Seridonio, A. C. [UNESP] |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
University of Iceland Universidade Estadual Paulista (UNESP) ITMO University Universidade Federal Fluminense (UFF) |
dc.contributor.author.fl_str_mv |
Ricco, L. S. Sanches, J. E. [UNESP] Marques, Y. de Souza, M. [UNESP] Figueira, M. S. Shelykh, I. A. Seridonio, A. C. [UNESP] |
description |
We consider transport properties of a hybrid device composed by a quantum dot placed between normal and superconducting reservoirs, and coupled to a Majorana nanowire: a topological superconducting segment hosting Majorana bound states (MBSs) at the opposite ends. It is demonstrated that if highly nonlocal and nonoverlapping MBSs are formed in the system, the zero-bias Andreev conductance through the dot exhibits characteristic isoconductance profiles with the shape depending on the spin asymmetry of the coupling between the dot and the topological superconductor. Otherwise, for overlapping MBSs with less degree of nonlocality, the conductance is insensitive to the spin polarization and the isoconductance signatures disappear. This allows to propose an alternative experimental protocol for probing the nonlocality of the MBSs in Majorana nanowires. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-12-01 2022-04-29T08:32:29Z 2022-04-29T08:32:29Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1038/s41598-021-96415-3 Scientific Reports, v. 11, n. 1, 2021. 2045-2322 http://hdl.handle.net/11449/229414 10.1038/s41598-021-96415-3 2-s2.0-85113741239 |
url |
http://dx.doi.org/10.1038/s41598-021-96415-3 http://hdl.handle.net/11449/229414 |
identifier_str_mv |
Scientific Reports, v. 11, n. 1, 2021. 2045-2322 10.1038/s41598-021-96415-3 2-s2.0-85113741239 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Scientific Reports |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965698522349568 |