Impurity effects in two-electron coupled quantum dots : entanglement modulation
- Autores
- Acosta Coden, Diego Sebastián; Romero, Rodolfo Horacio; Ferron, Alejandro; Gomez, Sergio Santiago
- Año de publicación
- 2013
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present a detailed analysis of the electronic and optical properties of two-electron quantum dots with a two-dimensional Gaussian confinement potential. We study the effects of Coulomb impurities and the possibility of manipulating the entanglement of the electrons by controlling the confinement potential parameters. The degree of entanglement becomes highly modulated by both the location and charge screening of the impurity atom, resulting in two regimes: one of low entanglement and the other of high entanglement, with both of them mainly determined by the magnitude of the charge. It is shown that the magnitude of the oscillator strength of the system could provide an indication of the presence and characteristics of impurities and, therefore, the degree of entanglement.
Fil: Acosta Coden, Diego Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado E Innovación Tecnológica; Argentina
Fil: Romero, Rodolfo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Ferron, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; Argentina
Fil: Gomez, Sergio Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; Argentina - Materia
-
Quantum Dots
Entanglement - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/2401
Ver los metadatos del registro completo
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Impurity effects in two-electron coupled quantum dots : entanglement modulationAcosta Coden, Diego SebastiánRomero, Rodolfo HoracioFerron, AlejandroGomez, Sergio SantiagoQuantum DotsEntanglementhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a detailed analysis of the electronic and optical properties of two-electron quantum dots with a two-dimensional Gaussian confinement potential. We study the effects of Coulomb impurities and the possibility of manipulating the entanglement of the electrons by controlling the confinement potential parameters. The degree of entanglement becomes highly modulated by both the location and charge screening of the impurity atom, resulting in two regimes: one of low entanglement and the other of high entanglement, with both of them mainly determined by the magnitude of the charge. It is shown that the magnitude of the oscillator strength of the system could provide an indication of the presence and characteristics of impurities and, therefore, the degree of entanglement.Fil: Acosta Coden, Diego Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado E Innovación Tecnológica; ArgentinaFil: Romero, Rodolfo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; ArgentinaFil: Ferron, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; ArgentinaFil: Gomez, Sergio Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; ArgentinaIOP Publishing2013-03-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2401Acosta Coden, Diego Sebastián; Romero, Rodolfo Horacio; Ferron, Alejandro; Gomez, Sergio Santiago; Impurity effects in two-electron coupled quantum dots : entanglement modulation; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 46; 7-3-2013; 65501-655090953-4075enginfo:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/46/6/065501info:eu-repo/semantics/altIdentifier/url/stacks.iop.org/JPhysB/46/065501info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:18:23Zoai:ri.conicet.gov.ar:11336/2401instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:18:23.621CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Impurity effects in two-electron coupled quantum dots : entanglement modulation |
title |
Impurity effects in two-electron coupled quantum dots : entanglement modulation |
spellingShingle |
Impurity effects in two-electron coupled quantum dots : entanglement modulation Acosta Coden, Diego Sebastián Quantum Dots Entanglement |
title_short |
Impurity effects in two-electron coupled quantum dots : entanglement modulation |
title_full |
Impurity effects in two-electron coupled quantum dots : entanglement modulation |
title_fullStr |
Impurity effects in two-electron coupled quantum dots : entanglement modulation |
title_full_unstemmed |
Impurity effects in two-electron coupled quantum dots : entanglement modulation |
title_sort |
Impurity effects in two-electron coupled quantum dots : entanglement modulation |
dc.creator.none.fl_str_mv |
Acosta Coden, Diego Sebastián Romero, Rodolfo Horacio Ferron, Alejandro Gomez, Sergio Santiago |
author |
Acosta Coden, Diego Sebastián |
author_facet |
Acosta Coden, Diego Sebastián Romero, Rodolfo Horacio Ferron, Alejandro Gomez, Sergio Santiago |
author_role |
author |
author2 |
Romero, Rodolfo Horacio Ferron, Alejandro Gomez, Sergio Santiago |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Quantum Dots Entanglement |
topic |
Quantum Dots Entanglement |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
We present a detailed analysis of the electronic and optical properties of two-electron quantum dots with a two-dimensional Gaussian confinement potential. We study the effects of Coulomb impurities and the possibility of manipulating the entanglement of the electrons by controlling the confinement potential parameters. The degree of entanglement becomes highly modulated by both the location and charge screening of the impurity atom, resulting in two regimes: one of low entanglement and the other of high entanglement, with both of them mainly determined by the magnitude of the charge. It is shown that the magnitude of the oscillator strength of the system could provide an indication of the presence and characteristics of impurities and, therefore, the degree of entanglement. Fil: Acosta Coden, Diego Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado E Innovación Tecnológica; Argentina Fil: Romero, Rodolfo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; Argentina Fil: Ferron, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; Argentina Fil: Gomez, Sergio Santiago. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Instituto de Modelado e Innovación Tecnológica; Argentina |
description |
We present a detailed analysis of the electronic and optical properties of two-electron quantum dots with a two-dimensional Gaussian confinement potential. We study the effects of Coulomb impurities and the possibility of manipulating the entanglement of the electrons by controlling the confinement potential parameters. The degree of entanglement becomes highly modulated by both the location and charge screening of the impurity atom, resulting in two regimes: one of low entanglement and the other of high entanglement, with both of them mainly determined by the magnitude of the charge. It is shown that the magnitude of the oscillator strength of the system could provide an indication of the presence and characteristics of impurities and, therefore, the degree of entanglement. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-03-07 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/2401 Acosta Coden, Diego Sebastián; Romero, Rodolfo Horacio; Ferron, Alejandro; Gomez, Sergio Santiago; Impurity effects in two-electron coupled quantum dots : entanglement modulation; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 46; 7-3-2013; 65501-65509 0953-4075 |
url |
http://hdl.handle.net/11336/2401 |
identifier_str_mv |
Acosta Coden, Diego Sebastián; Romero, Rodolfo Horacio; Ferron, Alejandro; Gomez, Sergio Santiago; Impurity effects in two-electron coupled quantum dots : entanglement modulation; IOP Publishing; Journal of Physics B: Atomic, Molecular and Optical Physics; 46; 7-3-2013; 65501-65509 0953-4075 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-4075/46/6/065501 info:eu-repo/semantics/altIdentifier/url/stacks.iop.org/JPhysB/46/065501 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844614145144520704 |
score |
13.070432 |