Multi-configuration Hartree-Fock theory in nuclei
- Autores
- Faessler, Amand; Plastino, Ángel Luis
- Año de publicación
- 1969
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- A variational method for the self-consistent solution of the nuclear many body problem with the inclusion of correlations is formulated. The trial function in this multiconfiguration-Hartree-Fock (MCHF) theory is a linear combination of unrestricted Slater determinants. The MCHF equations are given and a simple procedure for solving them is outlined. A great advantage of this method is that it also yields the excited states. It is shown that the trial function is stable against particle-hole excitations. Therefore the Slater determinants differ from each other at least by two particle — two hole excitations. This method is applied to the Lipkin model. In the MCHF method the difference to the exact solution is reduced by a factor three to ten compared with the corresponding value in the HF approach.
Instituto de Física La Plata - Materia
-
Física
Ciencias Exactas
multiconfiguration-Hartree-Fock
nuclear many body - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/145164
Ver los metadatos del registro completo
id |
SEDICI_afa5649b2d87e24c6ea6ed9c148d7a58 |
---|---|
oai_identifier_str |
oai:sedici.unlp.edu.ar:10915/145164 |
network_acronym_str |
SEDICI |
repository_id_str |
1329 |
network_name_str |
SEDICI (UNLP) |
spelling |
Multi-configuration Hartree-Fock theory in nucleiFaessler, AmandPlastino, Ángel LuisFísicaCiencias Exactasmulticonfiguration-Hartree-Focknuclear many bodyA variational method for the self-consistent solution of the nuclear many body problem with the inclusion of correlations is formulated. The trial function in this multiconfiguration-Hartree-Fock (MCHF) theory is a linear combination of unrestricted Slater determinants. The MCHF equations are given and a simple procedure for solving them is outlined. A great advantage of this method is that it also yields the excited states. It is shown that the trial function is stable against particle-hole excitations. Therefore the Slater determinants differ from each other at least by two particle — two hole excitations. This method is applied to the Lipkin model. In the MCHF method the difference to the exact solution is reduced by a factor three to ten compared with the corresponding value in the HF approach.Instituto de Física La Plata1969-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf88-100http://sedici.unlp.edu.ar/handle/10915/145164enginfo:eu-repo/semantics/altIdentifier/issn/0939-7922info:eu-repo/semantics/altIdentifier/issn/1434-6001info:eu-repo/semantics/altIdentifier/issn/1434-601xinfo:eu-repo/semantics/altIdentifier/doi/10.1007/bf01394412info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:24:14Zoai:sedici.unlp.edu.ar:10915/145164Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:24:15.097SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Multi-configuration Hartree-Fock theory in nuclei |
title |
Multi-configuration Hartree-Fock theory in nuclei |
spellingShingle |
Multi-configuration Hartree-Fock theory in nuclei Faessler, Amand Física Ciencias Exactas multiconfiguration-Hartree-Fock nuclear many body |
title_short |
Multi-configuration Hartree-Fock theory in nuclei |
title_full |
Multi-configuration Hartree-Fock theory in nuclei |
title_fullStr |
Multi-configuration Hartree-Fock theory in nuclei |
title_full_unstemmed |
Multi-configuration Hartree-Fock theory in nuclei |
title_sort |
Multi-configuration Hartree-Fock theory in nuclei |
dc.creator.none.fl_str_mv |
Faessler, Amand Plastino, Ángel Luis |
author |
Faessler, Amand |
author_facet |
Faessler, Amand Plastino, Ángel Luis |
author_role |
author |
author2 |
Plastino, Ángel Luis |
author2_role |
author |
dc.subject.none.fl_str_mv |
Física Ciencias Exactas multiconfiguration-Hartree-Fock nuclear many body |
topic |
Física Ciencias Exactas multiconfiguration-Hartree-Fock nuclear many body |
dc.description.none.fl_txt_mv |
A variational method for the self-consistent solution of the nuclear many body problem with the inclusion of correlations is formulated. The trial function in this multiconfiguration-Hartree-Fock (MCHF) theory is a linear combination of unrestricted Slater determinants. The MCHF equations are given and a simple procedure for solving them is outlined. A great advantage of this method is that it also yields the excited states. It is shown that the trial function is stable against particle-hole excitations. Therefore the Slater determinants differ from each other at least by two particle — two hole excitations. This method is applied to the Lipkin model. In the MCHF method the difference to the exact solution is reduced by a factor three to ten compared with the corresponding value in the HF approach. Instituto de Física La Plata |
description |
A variational method for the self-consistent solution of the nuclear many body problem with the inclusion of correlations is formulated. The trial function in this multiconfiguration-Hartree-Fock (MCHF) theory is a linear combination of unrestricted Slater determinants. The MCHF equations are given and a simple procedure for solving them is outlined. A great advantage of this method is that it also yields the excited states. It is shown that the trial function is stable against particle-hole excitations. Therefore the Slater determinants differ from each other at least by two particle — two hole excitations. This method is applied to the Lipkin model. In the MCHF method the difference to the exact solution is reduced by a factor three to ten compared with the corresponding value in the HF approach. |
publishDate |
1969 |
dc.date.none.fl_str_mv |
1969-02-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/145164 |
url |
http://sedici.unlp.edu.ar/handle/10915/145164 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0939-7922 info:eu-repo/semantics/altIdentifier/issn/1434-6001 info:eu-repo/semantics/altIdentifier/issn/1434-601x info:eu-repo/semantics/altIdentifier/doi/10.1007/bf01394412 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
dc.format.none.fl_str_mv |
application/pdf 88-100 |
dc.source.none.fl_str_mv |
reponame:SEDICI (UNLP) instname:Universidad Nacional de La Plata instacron:UNLP |
reponame_str |
SEDICI (UNLP) |
collection |
SEDICI (UNLP) |
instname_str |
Universidad Nacional de La Plata |
instacron_str |
UNLP |
institution |
UNLP |
repository.name.fl_str_mv |
SEDICI (UNLP) - Universidad Nacional de La Plata |
repository.mail.fl_str_mv |
alira@sedici.unlp.edu.ar |
_version_ |
1846064296577990656 |
score |
13.22299 |