Of Local Operations and Physical Wires

Autores
Egloff, Dario; Matera, Juan Mauricio; Theurer, Thomas; Plenio, Martin Bodo
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work (multipartite) entanglement, discord, and coherence are unified as different aspects of a single underlying resource theory defined through simple and operationally meaningful elemental operations. This is achieved by revisiting the resource theory defining entanglement, local operations, and classical communication (LOCC), placing the focus on the underlying quantum nature of the communication channels. Taking the natural elemental operations in the resulting generalization of LOCC yields a resource theory that singles out coherence in the wire connecting the spatially separated systems as an operationally useful resource. The approach naturally allows us to consider a reduced setting as well, namely, the one with only the wire connected to a single quantum system, which leads to discordlike resources. The general form of free operations in this latter setting is derived and presented as a closed form. We discuss in what sense the present approach defines a resource theory of quantum discord and in which situations such an interpretation is sound - and why in general discord is not a resource. This unified and operationally meaningful approach makes transparent many features of entanglement that in LOCC might seem surprising, such as the possibility to use a particle to entangle two parties, without it ever being entangled with either of them, or that there exist different forms of multipartite entanglement.
Fil: Egloff, Dario. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; Alemania
Fil: Matera, Juan Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Theurer, Thomas. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; Alemania
Fil: Plenio, Martin Bodo. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; Alemania
Materia
QUANTUM INFORMATION
QUANTUM COMMUNICATION
RESOURCE THEORIES
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:11336/101062
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Of Local Operations and Physical WiresEgloff, DarioMatera, Juan MauricioTheurer, ThomasPlenio, Martin BodoQUANTUM INFORMATIONQUANTUM COMMUNICATIONRESOURCE THEORIEShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this work (multipartite) entanglement, discord, and coherence are unified as different aspects of a single underlying resource theory defined through simple and operationally meaningful elemental operations. This is achieved by revisiting the resource theory defining entanglement, local operations, and classical communication (LOCC), placing the focus on the underlying quantum nature of the communication channels. Taking the natural elemental operations in the resulting generalization of LOCC yields a resource theory that singles out coherence in the wire connecting the spatially separated systems as an operationally useful resource. The approach naturally allows us to consider a reduced setting as well, namely, the one with only the wire connected to a single quantum system, which leads to discordlike resources. The general form of free operations in this latter setting is derived and presented as a closed form. We discuss in what sense the present approach defines a resource theory of quantum discord and in which situations such an interpretation is sound - and why in general discord is not a resource. This unified and operationally meaningful approach makes transparent many features of entanglement that in LOCC might seem surprising, such as the possibility to use a particle to entangle two parties, without it ever being entangled with either of them, or that there exist different forms of multipartite entanglement.Fil: Egloff, Dario. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; AlemaniaFil: Matera, Juan Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaFil: Theurer, Thomas. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; AlemaniaFil: Plenio, Martin Bodo. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; AlemaniaAmerican Physical Society2018-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/101062Egloff, Dario; Matera, Juan Mauricio; Theurer, Thomas; Plenio, Martin Bodo; Of Local Operations and Physical Wires; American Physical Society; Physical Review X; 8; 3; 7-2018; 1-212160-3308CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevX.8.031005info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevX.8.031005info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:07Zoai:ri.conicet.gov.ar:11336/101062instacron: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 10:07:07.427CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Of Local Operations and Physical Wires
title Of Local Operations and Physical Wires
spellingShingle Of Local Operations and Physical Wires
Egloff, Dario
QUANTUM INFORMATION
QUANTUM COMMUNICATION
RESOURCE THEORIES
title_short Of Local Operations and Physical Wires
title_full Of Local Operations and Physical Wires
title_fullStr Of Local Operations and Physical Wires
title_full_unstemmed Of Local Operations and Physical Wires
title_sort Of Local Operations and Physical Wires
dc.creator.none.fl_str_mv Egloff, Dario
Matera, Juan Mauricio
Theurer, Thomas
Plenio, Martin Bodo
author Egloff, Dario
author_facet Egloff, Dario
Matera, Juan Mauricio
Theurer, Thomas
Plenio, Martin Bodo
author_role author
author2 Matera, Juan Mauricio
Theurer, Thomas
Plenio, Martin Bodo
author2_role author
author
author
dc.subject.none.fl_str_mv QUANTUM INFORMATION
QUANTUM COMMUNICATION
RESOURCE THEORIES
topic QUANTUM INFORMATION
QUANTUM COMMUNICATION
RESOURCE THEORIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this work (multipartite) entanglement, discord, and coherence are unified as different aspects of a single underlying resource theory defined through simple and operationally meaningful elemental operations. This is achieved by revisiting the resource theory defining entanglement, local operations, and classical communication (LOCC), placing the focus on the underlying quantum nature of the communication channels. Taking the natural elemental operations in the resulting generalization of LOCC yields a resource theory that singles out coherence in the wire connecting the spatially separated systems as an operationally useful resource. The approach naturally allows us to consider a reduced setting as well, namely, the one with only the wire connected to a single quantum system, which leads to discordlike resources. The general form of free operations in this latter setting is derived and presented as a closed form. We discuss in what sense the present approach defines a resource theory of quantum discord and in which situations such an interpretation is sound - and why in general discord is not a resource. This unified and operationally meaningful approach makes transparent many features of entanglement that in LOCC might seem surprising, such as the possibility to use a particle to entangle two parties, without it ever being entangled with either of them, or that there exist different forms of multipartite entanglement.
Fil: Egloff, Dario. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; Alemania
Fil: Matera, Juan Mauricio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Fil: Theurer, Thomas. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; Alemania
Fil: Plenio, Martin Bodo. Universität Ulm. Faculty of Natural Sciences. Institute of Theoretical Physics; Alemania
description In this work (multipartite) entanglement, discord, and coherence are unified as different aspects of a single underlying resource theory defined through simple and operationally meaningful elemental operations. This is achieved by revisiting the resource theory defining entanglement, local operations, and classical communication (LOCC), placing the focus on the underlying quantum nature of the communication channels. Taking the natural elemental operations in the resulting generalization of LOCC yields a resource theory that singles out coherence in the wire connecting the spatially separated systems as an operationally useful resource. The approach naturally allows us to consider a reduced setting as well, namely, the one with only the wire connected to a single quantum system, which leads to discordlike resources. The general form of free operations in this latter setting is derived and presented as a closed form. We discuss in what sense the present approach defines a resource theory of quantum discord and in which situations such an interpretation is sound - and why in general discord is not a resource. This unified and operationally meaningful approach makes transparent many features of entanglement that in LOCC might seem surprising, such as the possibility to use a particle to entangle two parties, without it ever being entangled with either of them, or that there exist different forms of multipartite entanglement.
publishDate 2018
dc.date.none.fl_str_mv 2018-07
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/11336/101062
Egloff, Dario; Matera, Juan Mauricio; Theurer, Thomas; Plenio, Martin Bodo; Of Local Operations and Physical Wires; American Physical Society; Physical Review X; 8; 3; 7-2018; 1-21
2160-3308
CONICET Digital
CONICET
url http://hdl.handle.net/11336/101062
identifier_str_mv Egloff, Dario; Matera, Juan Mauricio; Theurer, Thomas; Plenio, Martin Bodo; Of Local Operations and Physical Wires; American Physical Society; Physical Review X; 8; 3; 7-2018; 1-21
2160-3308
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://link.aps.org/doi/10.1103/PhysRevX.8.031005
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevX.8.031005
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 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 13.070432

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