The thermodynamical limit of strongly correlated systems obtained from small-size-cluster calculations
We study the properties of strongly correlated systems, calculating the self-energy of the electronic propagator of small-size clusters. We focus our attention on the one-dimensional Hubbard model. It is shown that for adequate sizes and boundary conditions, the self-energy of such a small cluster p...
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1999
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 03851caa a22005297a 4500 | ||
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| 001 | PAPER-2619 | ||
| 003 | AR-BaUEN | ||
| 005 | 20250314093443.0 | ||
| 008 | 190411s1999 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-24044530464 | |
| 030 | |a JCOME | ||
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Chiappe, Guillermo | |
| 245 | 1 | 4 | |a The thermodynamical limit of strongly correlated systems obtained from small-size-cluster calculations |
| 260 | |c 1999 | ||
| 270 | 1 | 0 | |m Chiappe, G.; Departamento de Física, Pontificia Universidade Catolica do Rio de Janeiro, Caixa Postal 38071, 22452-970, Rio de Janeiro, Brazil |
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| 504 | |a Solyom, J., (1979) Adv. Phys., 28, p. 201 | ||
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| 504 | |a Parola, A., Sorella, S., (1992) Phys. Rev. B, 45, pp. R13156 | ||
| 504 | |a Santini, P., Andreani, L.C., Beck, H., (1993) Phys. Rev. B, 47, pp. R1130 | ||
| 506 | |2 openaire |e Política editorial | ||
| 520 | 3 | |a We study the properties of strongly correlated systems, calculating the self-energy of the electronic propagator of small-size clusters. We focus our attention on the one-dimensional Hubbard model. It is shown that for adequate sizes and boundary conditions, the self-energy of such a small cluster possesses the correct singular behaviour in the vicinity of the Fermi level for all values of the intra-atomic electron-electron interaction parameter U. The charge-transfer gap and other physical properties of the system are obtained at the thermodynamic limit. The survival of a single-pole singularity at w = 0 for the infinite-system self-energy constitutes a criterion for establishing whether the system is an insulator or a metal. © 1999 IOP Publishing Ltd. |l eng | |
| 593 | |a Departamento de Física, Pontificia Universidade Catolica do Rio de Janeiro, Caixa Postal 38071, 22452-970, Rio de Janeiro, Brazil | ||
| 593 | |a Departamento de Física, Universidad de Buenos Aires, Pabellón I, 1428 Capital Federal, Buenos Aires, Argentina | ||
| 700 | 1 | |a Busser, C. | |
| 700 | 1 | |a Anda, E.V. | |
| 700 | 1 | |a Ferrari, Valeria Paola | |
| 773 | 0 | |d 1999 |g v. 11 |h pp. 5237-5244 |k n. 27 |p J Phys Condens Matter |x 09538984 |w (AR-BaUEN)CENRE-311 |t Journal of Physics Condensed Matter | |
| 856 | 4 | 1 | |u https://www.scopus.com/inward/record.uri?eid=2-s2.0-24044530464&doi=10.1088%2f0953-8984%2f11%2f27%2f301&partnerID=40&md5=0cbdae228c1730f6f416f579ea96ce3f |y Registro en Scopus |
| 856 | 4 | 0 | |u https://doi.org/10.1088/0953-8984/11/27/301 |y DOI |
| 856 | 4 | 0 | |u https://hdl.handle.net/20.500.12110/paper_09538984_v11_n27_p5237_Chiappe |y Handle |
| 856 | 4 | 0 | |u https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09538984_v11_n27_p5237_Chiappe |y Registro en la Biblioteca Digital |
| 961 | |a paper_09538984_v11_n27_p5237_Chiappe |b paper |c PE | ||
| 962 | |a info:eu-repo/semantics/article |a info:ar-repo/semantics/artículo |b info:eu-repo/semantics/publishedVersion | ||
| 963 | |a VARI | ||
| 999 | |c 63572 | ||