Unconventional critical activated scaling of two-dimensional quantum spin glasses

Autores
Matoz Fernandez, Daniel Alejandro; Romá, Federico José
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study the critical behavior of two-dimensional short-range quantum spin glasses by numerical simulations. Using a parallel tempering algorithm, we calculate the Binder cumulant for the Ising spin glass in a transverse magnetic field with two different short-range bond distributions, the bimodal and the Gaussian ones. Through an exhaustive finite-size analysis, we show that the cumulant probably follows an unconventional activated scaling, which we interpret as new evidence supporting the hypothesis that the quantum critical behavior is governed by an infinite randomness fixed point.
Fil: Matoz Fernandez, Daniel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; Argentina
Fil: Romá, Federico José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; Argentina
Materia
Glasses
Quantum-Systems
Simulation
Phase-Transitions
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:11336/60594
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/60594
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling Unconventional critical activated scaling of two-dimensional quantum spin glassesMatoz Fernandez, Daniel AlejandroRomá, Federico JoséGlassesQuantum-SystemsSimulationPhase-Transitionshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study the critical behavior of two-dimensional short-range quantum spin glasses by numerical simulations. Using a parallel tempering algorithm, we calculate the Binder cumulant for the Ising spin glass in a transverse magnetic field with two different short-range bond distributions, the bimodal and the Gaussian ones. Through an exhaustive finite-size analysis, we show that the cumulant probably follows an unconventional activated scaling, which we interpret as new evidence supporting the hypothesis that the quantum critical behavior is governed by an infinite randomness fixed point.Fil: Matoz Fernandez, Daniel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; ArgentinaFil: Romá, Federico José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; ArgentinaAmerican Physical Society2016-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/60594Matoz Fernandez, Daniel Alejandro; Romá, Federico José; Unconventional critical activated scaling of two-dimensional quantum spin glasses; American Physical Society; Physical Review B; 94; 2; 7-2016; 1-6; 0242012469-9969CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.94.024201info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.024201info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:51Zoai:ri.conicet.gov.ar:11336/60594instacron: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 10:13:52.204CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Unconventional critical activated scaling of two-dimensional quantum spin glasses
title Unconventional critical activated scaling of two-dimensional quantum spin glasses
spellingShingle Unconventional critical activated scaling of two-dimensional quantum spin glasses
Matoz Fernandez, Daniel Alejandro
Glasses
Quantum-Systems
Simulation
Phase-Transitions
title_short Unconventional critical activated scaling of two-dimensional quantum spin glasses
title_full Unconventional critical activated scaling of two-dimensional quantum spin glasses
title_fullStr Unconventional critical activated scaling of two-dimensional quantum spin glasses
title_full_unstemmed Unconventional critical activated scaling of two-dimensional quantum spin glasses
title_sort Unconventional critical activated scaling of two-dimensional quantum spin glasses
dc.creator.none.fl_str_mv Matoz Fernandez, Daniel Alejandro
Romá, Federico José
author Matoz Fernandez, Daniel Alejandro
author_facet Matoz Fernandez, Daniel Alejandro
Romá, Federico José
author_role author
author2 Romá, Federico José
author2_role author
dc.subject.none.fl_str_mv Glasses
Quantum-Systems
Simulation
Phase-Transitions
topic Glasses
Quantum-Systems
Simulation
Phase-Transitions
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 study the critical behavior of two-dimensional short-range quantum spin glasses by numerical simulations. Using a parallel tempering algorithm, we calculate the Binder cumulant for the Ising spin glass in a transverse magnetic field with two different short-range bond distributions, the bimodal and the Gaussian ones. Through an exhaustive finite-size analysis, we show that the cumulant probably follows an unconventional activated scaling, which we interpret as new evidence supporting the hypothesis that the quantum critical behavior is governed by an infinite randomness fixed point.
Fil: Matoz Fernandez, Daniel Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; Argentina
Fil: Romá, Federico José. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Física Aplicada ; Argentina
description We study the critical behavior of two-dimensional short-range quantum spin glasses by numerical simulations. Using a parallel tempering algorithm, we calculate the Binder cumulant for the Ising spin glass in a transverse magnetic field with two different short-range bond distributions, the bimodal and the Gaussian ones. Through an exhaustive finite-size analysis, we show that the cumulant probably follows an unconventional activated scaling, which we interpret as new evidence supporting the hypothesis that the quantum critical behavior is governed by an infinite randomness fixed point.
publishDate 2016
dc.date.none.fl_str_mv 2016-07
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/11336/60594
Matoz Fernandez, Daniel Alejandro; Romá, Federico José; Unconventional critical activated scaling of two-dimensional quantum spin glasses; American Physical Society; Physical Review B; 94; 2; 7-2016; 1-6; 024201
2469-9969
CONICET Digital
CONICET
url http://hdl.handle.net/11336/60594
identifier_str_mv Matoz Fernandez, Daniel Alejandro; Romá, Federico José; Unconventional critical activated scaling of two-dimensional quantum spin glasses; American Physical Society; Physical Review B; 94; 2; 7-2016; 1-6; 024201
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/doi/10.1103/PhysRevB.94.024201
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prb/abstract/10.1103/PhysRevB.94.024201
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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