Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/49710
Título: | One-electron singular spectral features of the 1D Hubbard model at finite magnetic field |
Autor(es): | Carmelo, José Manuel Pereira Cadez, T. |
Palavras-chave: | One-electron spectral function in a magnetic field |
Data: | 2017 |
Editora: | Elsevier 1 |
Revista: | Nuclear Physics B |
Citação: | Nuclear Physics B 914, 461–552 (2017) |
Resumo(s): | 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. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/49710 |
DOI: | 10.1016/j.nuclphysb.2016.11.009 |
ISSN: | 0550-3213 |
e-ISSN: | 1873-1562 |
Versão da editora: | Available online at www.sciencedirect.com |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - CEP - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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17-oneelfiniteh.pdf | 1,94 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons