Abstract:
As a model for a deformed nucleus the many level pairing model (picket fence model with 100 levels) is considered in four approximations and compared to the exact solution given by Richardson long time ago. It is found that, as usual, the number projected BCS method improves over standard BCS but that it is much less accurate than the more sophisticated many-body-approaches which are Coupled Cluster Theory (CCT) in its SUB2 version or Self-Consistent Random Phase Approximation (SCRPA). © 2002 Elsevier Science B.V. All rights reserved.
Registro:
Documento: |
Artículo
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Título: | Comparison between exact and approximate treatments of the pairing interaction for finite fermi systems |
Autor: | Dukelsky, J.; Dussel, G.G.; Hirsch, J.G.; Schuck, P. |
Filiación: | Instituto de Estructura de Materia, CSIC, Serrano 123, 28006 Madrid, Spain Dept. de Fisica Juan Jose Giambiagi, Universidad de Buenos Aires, Pabellón 1, C. Universitaria, 1428 Buenos Aires, Argentina Instituto de Ciencias Nucleares, Univ. Nacional Autonoma de Mexico, Apdo. Postal 70-543, México 04510 D.F., Mexico Institut de Physique Nucleaire, Université de Paris-Sud, F-91406 Orsay Cedex, France
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Año: | 2003
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Volumen: | 714
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Número: | 1-2
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Página de inicio: | 63
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Página de fin: | 74
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DOI: |
http://dx.doi.org/10.1016/S0375-9474(02)01361-1 |
Título revista: | Nuclear Physics A
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Título revista abreviado: | Nucl. Phys. A
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ISSN: | 03759474
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CODEN: | NUPAB
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03759474_v714_n1-2_p63_Dukelsky |
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Citas:
---------- APA ----------
Dukelsky, J., Dussel, G.G., Hirsch, J.G. & Schuck, P.
(2003)
. Comparison between exact and approximate treatments of the pairing interaction for finite fermi systems. Nuclear Physics A, 714(1-2), 63-74.
http://dx.doi.org/10.1016/S0375-9474(02)01361-1---------- CHICAGO ----------
Dukelsky, J., Dussel, G.G., Hirsch, J.G., Schuck, P.
"Comparison between exact and approximate treatments of the pairing interaction for finite fermi systems"
. Nuclear Physics A 714, no. 1-2
(2003) : 63-74.
http://dx.doi.org/10.1016/S0375-9474(02)01361-1---------- MLA ----------
Dukelsky, J., Dussel, G.G., Hirsch, J.G., Schuck, P.
"Comparison between exact and approximate treatments of the pairing interaction for finite fermi systems"
. Nuclear Physics A, vol. 714, no. 1-2, 2003, pp. 63-74.
http://dx.doi.org/10.1016/S0375-9474(02)01361-1---------- VANCOUVER ----------
Dukelsky, J., Dussel, G.G., Hirsch, J.G., Schuck, P. Comparison between exact and approximate treatments of the pairing interaction for finite fermi systems. Nucl. Phys. A. 2003;714(1-2):63-74.
http://dx.doi.org/10.1016/S0375-9474(02)01361-1