Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing

We study the quantum phase transition mechanisms that arise in the Interacting Boson Model. We show that the second-order nature of the phase transition from U(5) to O(6) may be attributed to quantum integrability, whereas all the first-order phase transitions of the model are due to level repulsion...

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Detalles Bibliográficos
Autores: Arias Carrasco, José Miguel, Dukelsky, J., García Ramos, José Enrique
Tipo de recurso: artículo
Fecha de publicación:2003
País:España
Institución:Universidad de Huelva (UHU)
Repositorio:Arias Montano. Repositorio Institucional de la Universidad de Huelva
Idioma:inglés
OAI Identifier:oai:ariasmontano.uhu.es:10272/5465
Acceso en línea:http://hdl.handle.net/10272/5465
Access Level:acceso abierto
Palabra clave:Boson model
Quantum phase transitions
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spelling Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossingArias Carrasco, José MiguelDukelsky, J.García Ramos, José EnriqueBoson modelQuantum phase transitionsWe study the quantum phase transition mechanisms that arise in the Interacting Boson Model. We show that the second-order nature of the phase transition from U(5) to O(6) may be attributed to quantum integrability, whereas all the first-order phase transitions of the model are due to level repulsion with one singular point of level crossing. We propose a model Hamiltonian with a true first-order phase transition for finite systems due to level crossings.American Physical Society20032003-10-1420032003-10-14journal articlehttp://purl.org/coar/resource_type/c_6501info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10272/5465reponame:Arias Montano. Repositorio Institucional de la Universidad de Huelvainstname:Universidad de Huelva (UHU)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Atribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:ariasmontano.uhu.es:10272/54652026-06-02T14:58:11Z
dc.title.none.fl_str_mv Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing
title Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing
spellingShingle Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing
Arias Carrasco, José Miguel
Boson model
Quantum phase transitions
title_short Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing
title_full Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing
title_fullStr Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing
title_full_unstemmed Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing
title_sort Quantum Phase Transitions in the Interacting Boson Model : Integrability, level repulsion and level crossing
dc.creator.none.fl_str_mv Arias Carrasco, José Miguel
Dukelsky, J.
García Ramos, José Enrique
author Arias Carrasco, José Miguel
author_facet Arias Carrasco, José Miguel
Dukelsky, J.
García Ramos, José Enrique
author_role author
author2 Dukelsky, J.
García Ramos, José Enrique
author2_role author
author
dc.contributor.none.fl_str_mv
dc.subject.none.fl_str_mv Boson model
Quantum phase transitions
topic Boson model
Quantum phase transitions
description We study the quantum phase transition mechanisms that arise in the Interacting Boson Model. We show that the second-order nature of the phase transition from U(5) to O(6) may be attributed to quantum integrability, whereas all the first-order phase transitions of the model are due to level repulsion with one singular point of level crossing. We propose a model Hamiltonian with a true first-order phase transition for finite systems due to level crossings.
publishDate 2003
dc.date.none.fl_str_mv 2003
2003-10-14
2003
2003-10-14
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10272/5465
url http://hdl.handle.net/10272/5465
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Atribución-NoComercial-SinDerivadas 3.0 España
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 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:Arias Montano. Repositorio Institucional de la Universidad de Huelva
instname:Universidad de Huelva (UHU)
instname_str Universidad de Huelva (UHU)
reponame_str Arias Montano. Repositorio Institucional de la Universidad de Huelva
collection Arias Montano. Repositorio Institucional de la Universidad de Huelva
repository.name.fl_str_mv
repository.mail.fl_str_mv
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