Pair entanglement in dimerized spin- s chains

We examine the pair entanglement in the ground state of finite dimerized spin-s chains interacting through anisotropic XY couplings immersed in a transverse magnetic field by means of a self-consistent pair mean-field approximation. The approach, which makes no a priori assumptions on the pair state...

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Autores: Boette, Alan Pablo, Rossignoli, Raúl Dante, Canosa, Norma Beatriz, Matera, Juan Mauricio
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2016
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio:CONICET Digital (CONICET)
Idioma:inglés
OAI Identifier:oai:ri.conicet.gov.ar:11336/65916
Acesso em linha:http://hdl.handle.net/11336/65916
Access Level:acceso abierto
Palavra-chave:Spin systems
Large spin limit
Dimerization
Quantum entanglement
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
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spelling Pair entanglement in dimerized spin- s chainsBoette, Alan PabloRossignoli, Raúl DanteCanosa, Norma BeatrizMatera, Juan MauricioSpin systemsLarge spin limitDimerizationQuantum entanglementhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We examine the pair entanglement in the ground state of finite dimerized spin-s chains interacting through anisotropic XY couplings immersed in a transverse magnetic field by means of a self-consistent pair mean-field approximation. The approach, which makes no a priori assumptions on the pair states, predicts, for sufficiently low coupling between pairs, 2s distinct dimerized phases for increasing fields below the pair factorizing field, separated by spin-parity-breaking phases. The dimerized phases lead to approximate magnetization and pair entanglement plateaus, while the parity-breaking phases are characterized by weak pair entanglement but non-negligible entanglement of the pair with the rest of the system. These predictions are confirmed by the exact results obtained in finite s=1 and s=3/2 chains. It is also shown that for increasing values of the spin s, the entanglement of an isolated pair, as measured by the negativity, rapidly saturates in the anisotropic XY case but increases as s1/2 in the XX case, reflecting a distinct single-spin entanglement spectrum.Fil: Boette, Alan Pablo. 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: Rossignoli, Raúl Dante. 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: Canosa, Norma Beatriz. 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: 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; ArgentinaAmerican Physical Society2016-12info: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/11336/65916Boette, Alan Pablo; Rossignoli, Raúl Dante; Canosa, Norma Beatriz; Matera, Juan Mauricio; Pair entanglement in dimerized spin- s chains; American Physical Society; Physical Review B; 94; 21; 12-2016; 214403-2144032469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/pdf/10.1103/PhysRevB.94.214403info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.94.214403info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:54:19Zoai:ri.conicet.gov.ar:11336/65916instacron: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:34982024-05-08 13:54:20.026CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Pair entanglement in dimerized spin- s chains
title Pair entanglement in dimerized spin- s chains
spellingShingle Pair entanglement in dimerized spin- s chains
Boette, Alan Pablo
Spin systems
Large spin limit
Dimerization
Quantum entanglement
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
title_short Pair entanglement in dimerized spin- s chains
title_full Pair entanglement in dimerized spin- s chains
title_fullStr Pair entanglement in dimerized spin- s chains
title_full_unstemmed Pair entanglement in dimerized spin- s chains
title_sort Pair entanglement in dimerized spin- s chains
dc.creator.none.fl_str_mv Boette, Alan Pablo
Rossignoli, Raúl Dante
Canosa, Norma Beatriz
Matera, Juan Mauricio
author Boette, Alan Pablo
author_facet Boette, Alan Pablo
Rossignoli, Raúl Dante
Canosa, Norma Beatriz
Matera, Juan Mauricio
author_role author
author2 Rossignoli, Raúl Dante
Canosa, Norma Beatriz
Matera, Juan Mauricio
author2_role author
author
author
dc.subject.none.fl_str_mv Spin systems
Large spin limit
Dimerization
Quantum entanglement
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
topic Spin systems
Large spin limit
Dimerization
Quantum entanglement
https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
description We examine the pair entanglement in the ground state of finite dimerized spin-s chains interacting through anisotropic XY couplings immersed in a transverse magnetic field by means of a self-consistent pair mean-field approximation. The approach, which makes no a priori assumptions on the pair states, predicts, for sufficiently low coupling between pairs, 2s distinct dimerized phases for increasing fields below the pair factorizing field, separated by spin-parity-breaking phases. The dimerized phases lead to approximate magnetization and pair entanglement plateaus, while the parity-breaking phases are characterized by weak pair entanglement but non-negligible entanglement of the pair with the rest of the system. These predictions are confirmed by the exact results obtained in finite s=1 and s=3/2 chains. It is also shown that for increasing values of the spin s, the entanglement of an isolated pair, as measured by the negativity, rapidly saturates in the anisotropic XY case but increases as s1/2 in the XX case, reflecting a distinct single-spin entanglement spectrum.
publishDate 2016
dc.date.none.fl_str_mv 2016-12
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/11336/65916
Boette, Alan Pablo; Rossignoli, Raúl Dante; Canosa, Norma Beatriz; Matera, Juan Mauricio; Pair entanglement in dimerized spin- s chains; American Physical Society; Physical Review B; 94; 21; 12-2016; 214403-214403
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/65916
identifier_str_mv Boette, Alan Pablo; Rossignoli, Raúl Dante; Canosa, Norma Beatriz; Matera, Juan Mauricio; Pair entanglement in dimerized spin- s chains; American Physical Society; Physical Review B; 94; 21; 12-2016; 214403-214403
2469-9969
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/prb/pdf/10.1103/PhysRevB.94.214403
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.94.214403
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
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15.198674

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