Excited states of 4He droplets

Autores
Guardiola, R.; Navarro, J.; Portesi, Mariela Adelina
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We study low-lying excited states of 4He clusters up to a cluster size of 40 atoms in a variational framework. The ansatz wave function combines two- and three-body correlations, coming from a translationally invariant configuration interaction description, and Jastrow-type short-range correlation. We have previously used this scheme to determine the ground-state energies of 4He and 3He clusters. Here we present an extension of this ansatz wave function having a good quantum angular momentum L. The variational procedure is applied independently to the cases with L = 0,2,4, and upper bounds for the corresponding energies are thus obtained. Moreover, centroid energies for L excitations are calculated through the use of sum rules. A comparison with previous calculations is also made.
Fil: Guardiola, R.. Facultad de Física / Dpto de Física Atómica y Nuclear; España
Fil: Navarro, J.. Csic - Univ. de Valencia / Inst. de Física Corpuscular; España
Fil: Portesi, Mariela Adelina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
Materia
LIQUID AND SOLID HELIUM
GROUND STATE AND ELEMENTARY EXCITATIONS
ATOMIC AND MOLECULAR CLUSTERS
TWO AND THREE BODY CORRELATIONS
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/98628
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Excited states of 4He dropletsGuardiola, R.Navarro, J.Portesi, Mariela AdelinaLIQUID AND SOLID HELIUMGROUND STATE AND ELEMENTARY EXCITATIONSATOMIC AND MOLECULAR CLUSTERSTWO AND THREE BODY CORRELATIONShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We study low-lying excited states of 4He clusters up to a cluster size of 40 atoms in a variational framework. The ansatz wave function combines two- and three-body correlations, coming from a translationally invariant configuration interaction description, and Jastrow-type short-range correlation. We have previously used this scheme to determine the ground-state energies of 4He and 3He clusters. Here we present an extension of this ansatz wave function having a good quantum angular momentum L. The variational procedure is applied independently to the cases with L = 0,2,4, and upper bounds for the corresponding energies are thus obtained. Moreover, centroid energies for L excitations are calculated through the use of sum rules. A comparison with previous calculations is also made.Fil: Guardiola, R.. Facultad de Física / Dpto de Física Atómica y Nuclear; EspañaFil: Navarro, J.. Csic - Univ. de Valencia / Inst. de Física Corpuscular; EspañaFil: Portesi, Mariela Adelina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; ArgentinaAmerican Physical Society2001-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/98628Guardiola, R.; Navarro, J.; Portesi, Mariela Adelina; Excited states of 4He droplets; American Physical Society; Physical Review B; 63; 22; 5-2001; 2245191-22451970163-1829CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://prb.aps.org/abstract/PRB/v63/i22/e224519info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.63.224519info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:20:16Zoai:ri.conicet.gov.ar:11336/98628instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:20:16.842CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Excited states of 4He droplets
title Excited states of 4He droplets
spellingShingle Excited states of 4He droplets
Guardiola, R.
LIQUID AND SOLID HELIUM
GROUND STATE AND ELEMENTARY EXCITATIONS
ATOMIC AND MOLECULAR CLUSTERS
TWO AND THREE BODY CORRELATIONS
title_short Excited states of 4He droplets
title_full Excited states of 4He droplets
title_fullStr Excited states of 4He droplets
title_full_unstemmed Excited states of 4He droplets
title_sort Excited states of 4He droplets
dc.creator.none.fl_str_mv Guardiola, R.
Navarro, J.
Portesi, Mariela Adelina
author Guardiola, R.
author_facet Guardiola, R.
Navarro, J.
Portesi, Mariela Adelina
author_role author
author2 Navarro, J.
Portesi, Mariela Adelina
author2_role author
author
dc.subject.none.fl_str_mv LIQUID AND SOLID HELIUM
GROUND STATE AND ELEMENTARY EXCITATIONS
ATOMIC AND MOLECULAR CLUSTERS
TWO AND THREE BODY CORRELATIONS
topic LIQUID AND SOLID HELIUM
GROUND STATE AND ELEMENTARY EXCITATIONS
ATOMIC AND MOLECULAR CLUSTERS
TWO AND THREE BODY CORRELATIONS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We study low-lying excited states of 4He clusters up to a cluster size of 40 atoms in a variational framework. The ansatz wave function combines two- and three-body correlations, coming from a translationally invariant configuration interaction description, and Jastrow-type short-range correlation. We have previously used this scheme to determine the ground-state energies of 4He and 3He clusters. Here we present an extension of this ansatz wave function having a good quantum angular momentum L. The variational procedure is applied independently to the cases with L = 0,2,4, and upper bounds for the corresponding energies are thus obtained. Moreover, centroid energies for L excitations are calculated through the use of sum rules. A comparison with previous calculations is also made.
Fil: Guardiola, R.. Facultad de Física / Dpto de Física Atómica y Nuclear; España
Fil: Navarro, J.. Csic - Univ. de Valencia / Inst. de Física Corpuscular; España
Fil: Portesi, Mariela Adelina. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Física La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Instituto de Física La Plata; Argentina
description We study low-lying excited states of 4He clusters up to a cluster size of 40 atoms in a variational framework. The ansatz wave function combines two- and three-body correlations, coming from a translationally invariant configuration interaction description, and Jastrow-type short-range correlation. We have previously used this scheme to determine the ground-state energies of 4He and 3He clusters. Here we present an extension of this ansatz wave function having a good quantum angular momentum L. The variational procedure is applied independently to the cases with L = 0,2,4, and upper bounds for the corresponding energies are thus obtained. Moreover, centroid energies for L excitations are calculated through the use of sum rules. A comparison with previous calculations is also made.
publishDate 2001
dc.date.none.fl_str_mv 2001-05
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/98628
Guardiola, R.; Navarro, J.; Portesi, Mariela Adelina; Excited states of 4He droplets; American Physical Society; Physical Review B; 63; 22; 5-2001; 2245191-2245197
0163-1829
CONICET Digital
CONICET
url http://hdl.handle.net/11336/98628
identifier_str_mv Guardiola, R.; Navarro, J.; Portesi, Mariela Adelina; Excited states of 4He droplets; American Physical Society; Physical Review B; 63; 22; 5-2001; 2245191-2245197
0163-1829
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://prb.aps.org/abstract/PRB/v63/i22/e224519
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevB.63.224519
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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