Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot

Autores
Acosta Coden, Diego Sebastián; Romero, Rodolfo Horacio; Räsänen, Esa
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We propose an efficient control protocol for charge transfer in a double quantum dot. We consider numerically a two-dimensional model system, where the quantum dots are subjected to time-dependent electric fields corresponding to experimental gate voltages. Our protocol enables navigation in the charge stability diagram from a state to another through controllable variation of the fields. We show that the well-known adiabatic Landau-Zener transition-when supplemented with a time-dependent field tailored with optimal control theory-can remarkably improve the transition speed. The results also lead to a simple control scheme obtained from the experimental charge stability diagram that requires only a single parameter. Eventually, we can achieve the ultrafast performance of the composite pulse protocol that allows the system to be driven at the quantum speed limit.
Fil: Acosta Coden, Diego Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado E Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Cs.exactas Naturales y Agrimensura. Instituto de Modelado E Innovación Tecnologica; Argentina
Fil: Romero, Rodolfo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado E Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Cs.exactas Naturales y Agrimensura. Instituto de Modelado E Innovación Tecnologica; Argentina
Fil: Räsänen, Esa. Tampere University of Technology; Finlandia
Materia
QUANTUM DOTS
CHARGE STABILITY DIAGRAM
QUANTUM CONTROL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/16176
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Controlled high-fidelity navigation in the charge stability diagram of a double quantum dotAcosta Coden, Diego SebastiánRomero, Rodolfo HoracioRäsänen, EsaQUANTUM DOTSCHARGE STABILITY DIAGRAMQUANTUM CONTROLhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We propose an efficient control protocol for charge transfer in a double quantum dot. We consider numerically a two-dimensional model system, where the quantum dots are subjected to time-dependent electric fields corresponding to experimental gate voltages. Our protocol enables navigation in the charge stability diagram from a state to another through controllable variation of the fields. We show that the well-known adiabatic Landau-Zener transition-when supplemented with a time-dependent field tailored with optimal control theory-can remarkably improve the transition speed. The results also lead to a simple control scheme obtained from the experimental charge stability diagram that requires only a single parameter. Eventually, we can achieve the ultrafast performance of the composite pulse protocol that allows the system to be driven at the quantum speed limit.Fil: Acosta Coden, Diego Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado E Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Cs.exactas Naturales y Agrimensura. Instituto de Modelado E Innovación Tecnologica; ArgentinaFil: Romero, Rodolfo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado E Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Cs.exactas Naturales y Agrimensura. Instituto de Modelado E Innovación Tecnologica; ArgentinaFil: Räsänen, Esa. Tampere University of Technology; FinlandiaIop Publishing2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/16176Acosta Coden, Diego Sebastián; Romero, Rodolfo Horacio; Räsänen, Esa; Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot; Iop Publishing; Journal Of Physics: Condensed Matter; 27; 11; 3-2015; 1-80953-89841361-648Xenginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/0953-8984/27/11/115303/info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/27/11/115303info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:12:23Zoai:ri.conicet.gov.ar:11336/16176instacron: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:34982025-10-15 15:12:23.876CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
title Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
spellingShingle Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
Acosta Coden, Diego Sebastián
QUANTUM DOTS
CHARGE STABILITY DIAGRAM
QUANTUM CONTROL
title_short Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
title_full Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
title_fullStr Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
title_full_unstemmed Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
title_sort Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot
dc.creator.none.fl_str_mv Acosta Coden, Diego Sebastián
Romero, Rodolfo Horacio
Räsänen, Esa
author Acosta Coden, Diego Sebastián
author_facet Acosta Coden, Diego Sebastián
Romero, Rodolfo Horacio
Räsänen, Esa
author_role author
author2 Romero, Rodolfo Horacio
Räsänen, Esa
author2_role author
author
dc.subject.none.fl_str_mv QUANTUM DOTS
CHARGE STABILITY DIAGRAM
QUANTUM CONTROL
topic QUANTUM DOTS
CHARGE STABILITY DIAGRAM
QUANTUM CONTROL
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 propose an efficient control protocol for charge transfer in a double quantum dot. We consider numerically a two-dimensional model system, where the quantum dots are subjected to time-dependent electric fields corresponding to experimental gate voltages. Our protocol enables navigation in the charge stability diagram from a state to another through controllable variation of the fields. We show that the well-known adiabatic Landau-Zener transition-when supplemented with a time-dependent field tailored with optimal control theory-can remarkably improve the transition speed. The results also lead to a simple control scheme obtained from the experimental charge stability diagram that requires only a single parameter. Eventually, we can achieve the ultrafast performance of the composite pulse protocol that allows the system to be driven at the quantum speed limit.
Fil: Acosta Coden, Diego Sebastián. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado E Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Cs.exactas Naturales y Agrimensura. Instituto de Modelado E Innovación Tecnologica; Argentina
Fil: Romero, Rodolfo Horacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Modelado E Innovación Tecnológica. Universidad Nacional del Nordeste. Facultad de Cs.exactas Naturales y Agrimensura. Instituto de Modelado E Innovación Tecnologica; Argentina
Fil: Räsänen, Esa. Tampere University of Technology; Finlandia
description We propose an efficient control protocol for charge transfer in a double quantum dot. We consider numerically a two-dimensional model system, where the quantum dots are subjected to time-dependent electric fields corresponding to experimental gate voltages. Our protocol enables navigation in the charge stability diagram from a state to another through controllable variation of the fields. We show that the well-known adiabatic Landau-Zener transition-when supplemented with a time-dependent field tailored with optimal control theory-can remarkably improve the transition speed. The results also lead to a simple control scheme obtained from the experimental charge stability diagram that requires only a single parameter. Eventually, we can achieve the ultrafast performance of the composite pulse protocol that allows the system to be driven at the quantum speed limit.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/16176
Acosta Coden, Diego Sebastián; Romero, Rodolfo Horacio; Räsänen, Esa; Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot; Iop Publishing; Journal Of Physics: Condensed Matter; 27; 11; 3-2015; 1-8
0953-8984
1361-648X
url http://hdl.handle.net/11336/16176
identifier_str_mv Acosta Coden, Diego Sebastián; Romero, Rodolfo Horacio; Räsänen, Esa; Controlled high-fidelity navigation in the charge stability diagram of a double quantum dot; Iop Publishing; Journal Of Physics: Condensed Matter; 27; 11; 3-2015; 1-8
0953-8984
1361-648X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/0953-8984/27/11/115303/
info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/27/11/115303
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
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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score 13.22299

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