The relationship between entanglement, energy and level degeneracy in two-electron systems

Autores
Majtey, Ana Paula; Plastino, Ángel Ricardo; Dehesa, J. S.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The entanglement properties of two-electron atomic systems have been the subject of considerable research activity in recent years. These studies are still somewhat fragmentary, focusing on numerical computations on particular states of systems such as helium, or on analytical studies of model systems such as the Moshinsky atom. Some general trends are beginning to emerge from these studies: the amount of entanglement tends to increase with energy and, in the case of excited states, entanglement does not necessarily tend to zero in the limit of vanishing interaction between the two constituting particles. A physical explanation of these properties, shared by the different two-electron models investigated so far, is still lacking. As a first step towards this goal, we perform here, via a perturbative approach, an analysis of entanglement in two-electron models that sheds new light on the physical origin of the aforementioned features and on their universal character.
Fil: Majtey, Ana Paula. Universidad de Granada; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Plastino, Ángel Ricardo. Universidad de Granada; España. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Dehesa, J. S.. Universidad de Granada; España
Materia
QUANTUM ENTANGLEMENT
ENERGY
LEVEL DEGENERACY
TWO-ELECTRON SYSTEMS
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:11336/193652
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/193652
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The relationship between entanglement, energy and level degeneracy in two-electron systemsMajtey, Ana PaulaPlastino, Ángel RicardoDehesa, J. S.QUANTUM ENTANGLEMENTENERGYLEVEL DEGENERACYTWO-ELECTRON SYSTEMShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The entanglement properties of two-electron atomic systems have been the subject of considerable research activity in recent years. These studies are still somewhat fragmentary, focusing on numerical computations on particular states of systems such as helium, or on analytical studies of model systems such as the Moshinsky atom. Some general trends are beginning to emerge from these studies: the amount of entanglement tends to increase with energy and, in the case of excited states, entanglement does not necessarily tend to zero in the limit of vanishing interaction between the two constituting particles. A physical explanation of these properties, shared by the different two-electron models investigated so far, is still lacking. As a first step towards this goal, we perform here, via a perturbative approach, an analysis of entanglement in two-electron models that sheds new light on the physical origin of the aforementioned features and on their universal character.Fil: Majtey, Ana Paula. Universidad de Granada; España. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Plastino, Ángel Ricardo. Universidad de Granada; España. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Dehesa, J. S.. Universidad de Granada; EspañaIOP Publishing2012-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/193652Majtey, Ana Paula; Plastino, Ángel Ricardo; Dehesa, J. S.; The relationship between entanglement, energy and level degeneracy in two-electron systems; IOP Publishing; Journal of Physics A: Mathematical and Theoretical; 45; 115309; 3-2012; 1-121751-8113CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/1751-8113/45/11/115309info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1751-8113/45/11/115309info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:24:14Zoai:ri.conicet.gov.ar:11336/193652instacron: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:34982025-10-15 15:24:15.104CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The relationship between entanglement, energy and level degeneracy in two-electron systems
title The relationship between entanglement, energy and level degeneracy in two-electron systems
spellingShingle The relationship between entanglement, energy and level degeneracy in two-electron systems
Majtey, Ana Paula
QUANTUM ENTANGLEMENT
ENERGY
LEVEL DEGENERACY
TWO-ELECTRON SYSTEMS
title_short The relationship between entanglement, energy and level degeneracy in two-electron systems
title_full The relationship between entanglement, energy and level degeneracy in two-electron systems
title_fullStr The relationship between entanglement, energy and level degeneracy in two-electron systems
title_full_unstemmed The relationship between entanglement, energy and level degeneracy in two-electron systems
title_sort The relationship between entanglement, energy and level degeneracy in two-electron systems
dc.creator.none.fl_str_mv Majtey, Ana Paula
Plastino, Ángel Ricardo
Dehesa, J. S.
author Majtey, Ana Paula
author_facet Majtey, Ana Paula
Plastino, Ángel Ricardo
Dehesa, J. S.
author_role author
author2 Plastino, Ángel Ricardo
Dehesa, J. S.
author2_role author
author
dc.subject.none.fl_str_mv QUANTUM ENTANGLEMENT
ENERGY
LEVEL DEGENERACY
TWO-ELECTRON SYSTEMS
topic QUANTUM ENTANGLEMENT
ENERGY
LEVEL DEGENERACY
TWO-ELECTRON SYSTEMS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The entanglement properties of two-electron atomic systems have been the subject of considerable research activity in recent years. These studies are still somewhat fragmentary, focusing on numerical computations on particular states of systems such as helium, or on analytical studies of model systems such as the Moshinsky atom. Some general trends are beginning to emerge from these studies: the amount of entanglement tends to increase with energy and, in the case of excited states, entanglement does not necessarily tend to zero in the limit of vanishing interaction between the two constituting particles. A physical explanation of these properties, shared by the different two-electron models investigated so far, is still lacking. As a first step towards this goal, we perform here, via a perturbative approach, an analysis of entanglement in two-electron models that sheds new light on the physical origin of the aforementioned features and on their universal character.
Fil: Majtey, Ana Paula. Universidad de Granada; España. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Plastino, Ángel Ricardo. Universidad de Granada; España. Universidad Nacional de La Plata; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Dehesa, J. S.. Universidad de Granada; España
description The entanglement properties of two-electron atomic systems have been the subject of considerable research activity in recent years. These studies are still somewhat fragmentary, focusing on numerical computations on particular states of systems such as helium, or on analytical studies of model systems such as the Moshinsky atom. Some general trends are beginning to emerge from these studies: the amount of entanglement tends to increase with energy and, in the case of excited states, entanglement does not necessarily tend to zero in the limit of vanishing interaction between the two constituting particles. A physical explanation of these properties, shared by the different two-electron models investigated so far, is still lacking. As a first step towards this goal, we perform here, via a perturbative approach, an analysis of entanglement in two-electron models that sheds new light on the physical origin of the aforementioned features and on their universal character.
publishDate 2012
dc.date.none.fl_str_mv 2012-03
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/11336/193652
Majtey, Ana Paula; Plastino, Ángel Ricardo; Dehesa, J. S.; The relationship between entanglement, energy and level degeneracy in two-electron systems; IOP Publishing; Journal of Physics A: Mathematical and Theoretical; 45; 115309; 3-2012; 1-12
1751-8113
CONICET Digital
CONICET
url http://hdl.handle.net/11336/193652
identifier_str_mv Majtey, Ana Paula; Plastino, Ángel Ricardo; Dehesa, J. S.; The relationship between entanglement, energy and level degeneracy in two-electron systems; IOP Publishing; Journal of Physics A: Mathematical and Theoretical; 45; 115309; 3-2012; 1-12
1751-8113
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/1751-8113/45/11/115309
info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/1751-8113/45/11/115309
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 IOP Publishing
publisher.none.fl_str_mv IOP Publishing
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 12.891075

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