Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/60113
Título: | An application of the extended global SO(3) × SO(3) × U(1) symmetry of the Hubbard model on a square lattice: The spinon, η-Spinon, and c Fermion description |
Autor(es): | Carmelo, José Manuel Pereira Sampaio, Maria J. |
Palavras-chave: | correlated electronic systems symmetry representations neutron scattering |
Data: | 12-Dez-2011 |
Editora: | Multidisciplinary Digital Publishing Institute |
Revista: | Symmetry |
Resumo(s): | In this paper we review recent results on the preliminary applications of the new-found extended global SO(3) × SO(3) × U(1) symmetry of the Hubbard model on a bipartite lattice. Our results refer to the particular case of the bipartite square lattice. Specifically, we review a general description for such a model with nearest-neighbor transfer integral <em>t</em> and on-site repulsion <em>U</em> on a square lattice with N<sup>2</sup><sub>a</sub> 1 sites consistent with its extended global symmetry. It refers to three types of elementary objects whose occupancy configurations generate the state representations of the model extended global symmetry. Such objects emerge from a suitable electron-rotated-electron unitary transformation. An application to the spin spectrum of the parent compound La<sub>2</sub>CuO<sub>4</sub> is shortly reviewed. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/60113 |
DOI: | 10.3390/sym3040780 |
e-ISSN: | 2073-8994 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
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Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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symmetry-03-00780-v2.pdf | 581,63 kB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons