Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains

Autores
Zwick, Analía Elizabeth; Alvarez, Gonzalo Agustin; Stolze, Joachim; Osenda, Omar
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Quantum state transfer in the presence of static disorder and noise is one of the main challenges in building quantum computers. We compare the quantum state transfer properties for two classes of qubit chains under the influence of static disorder. In fully engineered chains all nearest-neighbor couplings are tuned in such a way that a single-qubit state can be transferred perfectly between the ends of the chain, while in chains with modified boundaries only the two couplings between the transmitting and receiving qubits and the remainder of the chain can be optimized. We study how the disorder in the couplings affects the state transfer fidelity depending on the disorder model and strength as well as the chain type and length. We show that the desired level of fidelity and transfer time are important factors in designing a chain. In particular we demonstrate that transfer efficiency comparable or better than that of the most robust engineered systems can also be reached in chains with modified boundaries without the demanding engineering of a large number of couplings.
Fil: Zwick, Analía Elizabeth. Universität Dortmund; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Alvarez, Gonzalo Agustin. Universität Dortmund; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Stolze, Joachim. Universität Dortmund; Alemania
Fil: Osenda, Omar. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomia y Física. Sección Física. Grupo de Teoria de la Materia Condensada; Argentina
Materia
Quantum state transfer
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:11336/138106
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chainsZwick, Analía ElizabethAlvarez, Gonzalo AgustinStolze, JoachimOsenda, OmarQuantum state transferhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Quantum state transfer in the presence of static disorder and noise is one of the main challenges in building quantum computers. We compare the quantum state transfer properties for two classes of qubit chains under the influence of static disorder. In fully engineered chains all nearest-neighbor couplings are tuned in such a way that a single-qubit state can be transferred perfectly between the ends of the chain, while in chains with modified boundaries only the two couplings between the transmitting and receiving qubits and the remainder of the chain can be optimized. We study how the disorder in the couplings affects the state transfer fidelity depending on the disorder model and strength as well as the chain type and length. We show that the desired level of fidelity and transfer time are important factors in designing a chain. In particular we demonstrate that transfer efficiency comparable or better than that of the most robust engineered systems can also be reached in chains with modified boundaries without the demanding engineering of a large number of couplings.Fil: Zwick, Analía Elizabeth. Universität Dortmund; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; ArgentinaFil: Alvarez, Gonzalo Agustin. Universität Dortmund; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Stolze, Joachim. Universität Dortmund; AlemaniaFil: Osenda, Omar. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomia y Física. Sección Física. Grupo de Teoria de la Materia Condensada; ArgentinaAmerican Physical Society2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/138106Zwick, Analía Elizabeth; Alvarez, Gonzalo Agustin; Stolze, Joachim; Osenda, Omar; Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 85; 1; 1-2012; 1-5; 0123181050-2947CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.85.012318info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.85.012318info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:17:06Zoai:ri.conicet.gov.ar:11336/138106instacron: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 15:17:06.952CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains
title Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains
spellingShingle Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains
Zwick, Analía Elizabeth
Quantum state transfer
title_short Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains
title_full Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains
title_fullStr Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains
title_full_unstemmed Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains
title_sort Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains
dc.creator.none.fl_str_mv Zwick, Analía Elizabeth
Alvarez, Gonzalo Agustin
Stolze, Joachim
Osenda, Omar
author Zwick, Analía Elizabeth
author_facet Zwick, Analía Elizabeth
Alvarez, Gonzalo Agustin
Stolze, Joachim
Osenda, Omar
author_role author
author2 Alvarez, Gonzalo Agustin
Stolze, Joachim
Osenda, Omar
author2_role author
author
author
dc.subject.none.fl_str_mv Quantum state transfer
topic Quantum state transfer
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Quantum state transfer in the presence of static disorder and noise is one of the main challenges in building quantum computers. We compare the quantum state transfer properties for two classes of qubit chains under the influence of static disorder. In fully engineered chains all nearest-neighbor couplings are tuned in such a way that a single-qubit state can be transferred perfectly between the ends of the chain, while in chains with modified boundaries only the two couplings between the transmitting and receiving qubits and the remainder of the chain can be optimized. We study how the disorder in the couplings affects the state transfer fidelity depending on the disorder model and strength as well as the chain type and length. We show that the desired level of fidelity and transfer time are important factors in designing a chain. In particular we demonstrate that transfer efficiency comparable or better than that of the most robust engineered systems can also be reached in chains with modified boundaries without the demanding engineering of a large number of couplings.
Fil: Zwick, Analía Elizabeth. Universität Dortmund; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física; Argentina
Fil: Alvarez, Gonzalo Agustin. Universität Dortmund; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Stolze, Joachim. Universität Dortmund; Alemania
Fil: Osenda, Omar. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomia y Física. Sección Física. Grupo de Teoria de la Materia Condensada; Argentina
description Quantum state transfer in the presence of static disorder and noise is one of the main challenges in building quantum computers. We compare the quantum state transfer properties for two classes of qubit chains under the influence of static disorder. In fully engineered chains all nearest-neighbor couplings are tuned in such a way that a single-qubit state can be transferred perfectly between the ends of the chain, while in chains with modified boundaries only the two couplings between the transmitting and receiving qubits and the remainder of the chain can be optimized. We study how the disorder in the couplings affects the state transfer fidelity depending on the disorder model and strength as well as the chain type and length. We show that the desired level of fidelity and transfer time are important factors in designing a chain. In particular we demonstrate that transfer efficiency comparable or better than that of the most robust engineered systems can also be reached in chains with modified boundaries without the demanding engineering of a large number of couplings.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/11336/138106
Zwick, Analía Elizabeth; Alvarez, Gonzalo Agustin; Stolze, Joachim; Osenda, Omar; Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 85; 1; 1-2012; 1-5; 012318
1050-2947
CONICET Digital
CONICET
url http://hdl.handle.net/11336/138106
identifier_str_mv Zwick, Analía Elizabeth; Alvarez, Gonzalo Agustin; Stolze, Joachim; Osenda, Omar; Spin chains for robust state transfer: Modified boundary couplings versus completely engineered chains; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 85; 1; 1-2012; 1-5; 012318
1050-2947
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.85.012318
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevA.85.012318
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
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
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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