Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor

17 pages, 12 figures

Detalles Bibliográficos
Autores: Alvarado, Miguel, Levy Yeyati, Alfredo, Aguado, Ramón, Seoane Souto, Rubén
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2024
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/383629
Acceso en línea:http://hdl.handle.net/10261/383629
http://arxiv.org/abs/2407.07050v3
Access Level:acceso abierto
Palabra clave:Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Superconductivity
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spelling Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductorAlvarado, MiguelLevy Yeyati, AlfredoAguado, RamónSeoane Souto, RubénPhysics - Mesoscopic Systems and Quantum Hall EffectPhysics - Mesoscopic Systems and Quantum Hall EffectPhysics - Superconductivity17 pages, 12 figuresTwo semiconducting quantum dots (QDs) coupled through a superconductor constitute a minimal realisation of a Kitaev chain with Majorana zero modes (MZMs). Such MZMs can be detected by e.g., tunneling conductance between each QD and normal leads [Dvir et al, Nature 614, 445 (2023)]. We here discuss how the seemingly trivial substitution of one of the normal leads by a superconducting (SC) one gives rise to a plethora of new effects. In particular, the coupling to the SC lead induces non-local Majorana effects upon variations of the QDs' energies. Furthermore, the lowest excitation of the chain is no longer determined by the bulk gap but rather by the energy of an emergent subgap Yu-Shiba-Rusinov (YSR) state coexisting with the MZMs. The YSR state hybridizes with the MZMs when the coupling between the SC and the QD is larger than the spin splitting, spoiling the Majorana properties, including the quantized conductance.Peer reviewedAmerican Physical Society0000-0003-1875-257X0000-0001-5668-66360000-0002-7464-73630000-0002-2978-3534Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/383629http://arxiv.org/abs/2407.07050v3reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésPhysical Review Bhttps://doi.org/10.1103/PhysRevB.109.075101Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3836292026-05-22T06:33:51Z
dc.title.none.fl_str_mv Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor
title Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor
spellingShingle Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor
Alvarado, Miguel
Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Superconductivity
title_short Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor
title_full Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor
title_fullStr Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor
title_full_unstemmed Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor
title_sort Interplay between Majorana and Shiba states in a minimal Kitaev chain coupled to a superconductor
dc.creator.none.fl_str_mv Alvarado, Miguel
Levy Yeyati, Alfredo
Aguado, Ramón
Seoane Souto, Rubén
author Alvarado, Miguel
author_facet Alvarado, Miguel
Levy Yeyati, Alfredo
Aguado, Ramón
Seoane Souto, Rubén
author_role author
author2 Levy Yeyati, Alfredo
Aguado, Ramón
Seoane Souto, Rubén
author2_role author
author
author
dc.contributor.none.fl_str_mv 0000-0003-1875-257X
0000-0001-5668-6636
0000-0002-7464-7363
0000-0002-2978-3534
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Superconductivity
topic Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Mesoscopic Systems and Quantum Hall Effect
Physics - Superconductivity
description 17 pages, 12 figures
publishDate 2024
dc.date.none.fl_str_mv 2024
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/383629
http://arxiv.org/abs/2407.07050v3
url http://hdl.handle.net/10261/383629
http://arxiv.org/abs/2407.07050v3
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Physical Review B
https://doi.org/10.1103/PhysRevB.109.075101
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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