One-electron singular spectral features of the 1D Hubbard model at finite magnetic field
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/1822/49710 |
Resumo: | The momentum, electronic density, spin density, and interaction dependences of the exponents that con-trol the (k, ω)-plane singular features of the σ=↑, ↓one-electron spectral functions of the 1D Hubbard model at finite magnetic field are studied. The usual half-filling concepts of one-electron lower Hubbard band and upper Hubbard band are defined in terms of the rotated electrons associated with the model Bethe-ansatz solution for all electronic density and spin density values and the whole finite repulsion range. Such rotated electrons are the link of the non-perturbative relation between the electrons and the pseudofermions. Our results further clarify the microscopic processes through which the pseudofermion dynamical theory accounts for the one-electron matrix elements between the ground state and excited energy eigenstates. |
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One-electron singular spectral features of the 1D Hubbard model at finite magnetic fieldOne-electron spectral function in a magnetic fieldCiências Naturais::Ciências FísicasScience & TechnologyThe momentum, electronic density, spin density, and interaction dependences of the exponents that con-trol the (k, ω)-plane singular features of the σ=↑, ↓one-electron spectral functions of the 1D Hubbard model at finite magnetic field are studied. The usual half-filling concepts of one-electron lower Hubbard band and upper Hubbard band are defined in terms of the rotated electrons associated with the model Bethe-ansatz solution for all electronic density and spin density values and the whole finite repulsion range. Such rotated electrons are the link of the non-perturbative relation between the electrons and the pseudofermions. Our results further clarify the microscopic processes through which the pseudofermion dynamical theory accounts for the one-electron matrix elements between the ground state and excited energy eigenstates.Portuguese FCT through the Grant UID/FIS/04650/2013info:eu-repo/semantics/publishedVersionElsevierUniversidade do MinhoCarmelo, José Manuel PereiraCadez, T.20172017-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/49710engNuclear Physics B 914, 461–552 (2017)0550-32131873-156210.1016/j.nuclphysb.2016.11.009Available online at www.sciencedirect.cominfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:25:07Zoai:repositorium.sdum.uminho.pt:1822/49710Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:19:18.496497Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
One-electron singular spectral features of the 1D Hubbard model at finite magnetic field |
title |
One-electron singular spectral features of the 1D Hubbard model at finite magnetic field |
spellingShingle |
One-electron singular spectral features of the 1D Hubbard model at finite magnetic field Carmelo, José Manuel Pereira One-electron spectral function in a magnetic field Ciências Naturais::Ciências Físicas Science & Technology |
title_short |
One-electron singular spectral features of the 1D Hubbard model at finite magnetic field |
title_full |
One-electron singular spectral features of the 1D Hubbard model at finite magnetic field |
title_fullStr |
One-electron singular spectral features of the 1D Hubbard model at finite magnetic field |
title_full_unstemmed |
One-electron singular spectral features of the 1D Hubbard model at finite magnetic field |
title_sort |
One-electron singular spectral features of the 1D Hubbard model at finite magnetic field |
author |
Carmelo, José Manuel Pereira |
author_facet |
Carmelo, José Manuel Pereira Cadez, T. |
author_role |
author |
author2 |
Cadez, T. |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Carmelo, José Manuel Pereira Cadez, T. |
dc.subject.por.fl_str_mv |
One-electron spectral function in a magnetic field Ciências Naturais::Ciências Físicas Science & Technology |
topic |
One-electron spectral function in a magnetic field Ciências Naturais::Ciências Físicas Science & Technology |
description |
The momentum, electronic density, spin density, and interaction dependences of the exponents that con-trol the (k, ω)-plane singular features of the σ=↑, ↓one-electron spectral functions of the 1D Hubbard model at finite magnetic field are studied. The usual half-filling concepts of one-electron lower Hubbard band and upper Hubbard band are defined in terms of the rotated electrons associated with the model Bethe-ansatz solution for all electronic density and spin density values and the whole finite repulsion range. Such rotated electrons are the link of the non-perturbative relation between the electrons and the pseudofermions. Our results further clarify the microscopic processes through which the pseudofermion dynamical theory accounts for the one-electron matrix elements between the ground state and excited energy eigenstates. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2017-01-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/1822/49710 |
url |
http://hdl.handle.net/1822/49710 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Nuclear Physics B 914, 461–552 (2017) 0550-3213 1873-1562 10.1016/j.nuclphysb.2016.11.009 Available online at www.sciencedirect.com |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799132651217485824 |