Quantum phase transitions in an interacting atom-molecule boson model

Detalhes bibliográficos
Autor(a) principal: Santos Filho, Gilberto Nascimento
Data de Publicação: 2010
Outros Autores: Foerster, Angela, Links, Jon, Mattei, Eduardo Cerutti, Dahmen, Silvio Renato
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/104318
Resumo: We study the quantum phase transitions of a model that describes the interconversion of interacting bosonic atoms and molecules. Using a classical analysis, we identify a threshold coupling line separating a molecular phase and a mixed phase. Through studies of the energy gap, von Neumann entanglement entropy, and fidelity, we give evidence that this line is associated with a boundary line in the ground-state phase diagram of the quantum system.
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spelling Santos Filho, Gilberto NascimentoFoerster, AngelaLinks, JonMattei, Eduardo CeruttiDahmen, Silvio Renato2014-10-09T02:13:15Z20101050-2947http://hdl.handle.net/10183/104318000749984We study the quantum phase transitions of a model that describes the interconversion of interacting bosonic atoms and molecules. Using a classical analysis, we identify a threshold coupling line separating a molecular phase and a mixed phase. Through studies of the energy gap, von Neumann entanglement entropy, and fidelity, we give evidence that this line is associated with a boundary line in the ground-state phase diagram of the quantum system.application/pdfengPhysical review. A, Atomic, molecular, and optical physics. New York. Vol. 81, no. 6 (June 2010), 063621, 6 p.Física da matéria condensadaSistemas de bósonsTransformações de faseEntropiaTermodinâmicaQuantum phase transitions in an interacting atom-molecule boson modelEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000749984.pdf000749984.pdfTexto completo (inglês)application/pdf527464http://www.lume.ufrgs.br/bitstream/10183/104318/1/000749984.pdf53b349be89469ceabd2f565535dc9ee6MD51TEXT000749984.pdf.txt000749984.pdf.txtExtracted Texttext/plain22830http://www.lume.ufrgs.br/bitstream/10183/104318/2/000749984.pdf.txtc10eb0d81de99296188e4ef395764baeMD52THUMBNAIL000749984.pdf.jpg000749984.pdf.jpgGenerated Thumbnailimage/jpeg2214http://www.lume.ufrgs.br/bitstream/10183/104318/3/000749984.pdf.jpga448df1cd06a1fadbb2e75088b43d238MD5310183/1043182023-06-24 03:37:38.874547oai:www.lume.ufrgs.br:10183/104318Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-06-24T06:37:38Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Quantum phase transitions in an interacting atom-molecule boson model
title Quantum phase transitions in an interacting atom-molecule boson model
spellingShingle Quantum phase transitions in an interacting atom-molecule boson model
Santos Filho, Gilberto Nascimento
Física da matéria condensada
Sistemas de bósons
Transformações de fase
Entropia
Termodinâmica
title_short Quantum phase transitions in an interacting atom-molecule boson model
title_full Quantum phase transitions in an interacting atom-molecule boson model
title_fullStr Quantum phase transitions in an interacting atom-molecule boson model
title_full_unstemmed Quantum phase transitions in an interacting atom-molecule boson model
title_sort Quantum phase transitions in an interacting atom-molecule boson model
author Santos Filho, Gilberto Nascimento
author_facet Santos Filho, Gilberto Nascimento
Foerster, Angela
Links, Jon
Mattei, Eduardo Cerutti
Dahmen, Silvio Renato
author_role author
author2 Foerster, Angela
Links, Jon
Mattei, Eduardo Cerutti
Dahmen, Silvio Renato
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Santos Filho, Gilberto Nascimento
Foerster, Angela
Links, Jon
Mattei, Eduardo Cerutti
Dahmen, Silvio Renato
dc.subject.por.fl_str_mv Física da matéria condensada
Sistemas de bósons
Transformações de fase
Entropia
Termodinâmica
topic Física da matéria condensada
Sistemas de bósons
Transformações de fase
Entropia
Termodinâmica
description We study the quantum phase transitions of a model that describes the interconversion of interacting bosonic atoms and molecules. Using a classical analysis, we identify a threshold coupling line separating a molecular phase and a mixed phase. Through studies of the energy gap, von Neumann entanglement entropy, and fidelity, we give evidence that this line is associated with a boundary line in the ground-state phase diagram of the quantum system.
publishDate 2010
dc.date.issued.fl_str_mv 2010
dc.date.accessioned.fl_str_mv 2014-10-09T02:13:15Z
dc.type.driver.fl_str_mv Estrangeiro
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/104318
dc.identifier.issn.pt_BR.fl_str_mv 1050-2947
dc.identifier.nrb.pt_BR.fl_str_mv 000749984
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Physical review. A, Atomic, molecular, and optical physics. New York. Vol. 81, no. 6 (June 2010), 063621, 6 p.
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