Observability of an induced electric dipole moment of the neutron from nonlinear QED

Autores
Zimmer, O.; Dominguez, Cesareo A.; Falomir, Horacio Alberto; Loewe, Marcelo
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
It has been shown recently that a neutron placed in an external quasistatic electric field develops an induced electric dipole moment pIND due to quantum fluctuations in the QED vacuum. A feasible experiment which could detect such an effect is proposed and described here. It is shown that the peculiar angular dependence of pIND on the orientation of the neutron spin leads to a characteristic asymmetry in polarized neutron scattering by heavy nuclei. This asymmetry can be of the order of 10⁻³ for neutrons with epithermal energies. For thermalized neutrons from a hot moderator, one still expects experimentally accessible values of the order of 10⁻⁴. The contribution of the induced effect to the neutron scattering length is expected to be only 1 order of magnitude smaller than that due to the neutron polarizability from its quark substructure. The experimental observation of this scattering asymmetry would be the first ever signal of nonlinearity in electrodynamics due to quantum fluctuations in the QED vacuum.
Facultad de Ciencias Exactas
Instituto de Física La Plata
Materia
Ciencias Exactas
Física
neutron
external quasistatic electric field
dipole moment
nonlinear QED
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/126240
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/126240
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Observability of an induced electric dipole moment of the neutron from nonlinear QEDZimmer, O.Dominguez, Cesareo A.Falomir, Horacio AlbertoLoewe, MarceloCiencias ExactasFísicaneutronexternal quasistatic electric fielddipole momentnonlinear QEDIt has been shown recently that a neutron placed in an external quasistatic electric field develops an induced electric dipole moment p<sub>IND</sub> due to quantum fluctuations in the QED vacuum. A feasible experiment which could detect such an effect is proposed and described here. It is shown that the peculiar angular dependence of p<sub>IND</sub> on the orientation of the neutron spin leads to a characteristic asymmetry in polarized neutron scattering by heavy nuclei. This asymmetry can be of the order of 10⁻³ for neutrons with epithermal energies. For thermalized neutrons from a hot moderator, one still expects experimentally accessible values of the order of 10⁻⁴. The contribution of the induced effect to the neutron scattering length is expected to be only 1 order of magnitude smaller than that due to the neutron polarizability from its quark substructure. The experimental observation of this scattering asymmetry would be the first ever signal of nonlinearity in electrodynamics due to quantum fluctuations in the QED vacuum.Facultad de Ciencias ExactasInstituto de Física La Plata2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/126240enginfo:eu-repo/semantics/altIdentifier/issn/1550-7998info:eu-repo/semantics/altIdentifier/issn/1550-2368info:eu-repo/semantics/altIdentifier/arxiv/1104.1260info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.85.013004info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:30:18Zoai:sedici.unlp.edu.ar:10915/126240Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:30:19.294SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Observability of an induced electric dipole moment of the neutron from nonlinear QED
title Observability of an induced electric dipole moment of the neutron from nonlinear QED
spellingShingle Observability of an induced electric dipole moment of the neutron from nonlinear QED
Zimmer, O.
Ciencias Exactas
Física
neutron
external quasistatic electric field
dipole moment
nonlinear QED
title_short Observability of an induced electric dipole moment of the neutron from nonlinear QED
title_full Observability of an induced electric dipole moment of the neutron from nonlinear QED
title_fullStr Observability of an induced electric dipole moment of the neutron from nonlinear QED
title_full_unstemmed Observability of an induced electric dipole moment of the neutron from nonlinear QED
title_sort Observability of an induced electric dipole moment of the neutron from nonlinear QED
dc.creator.none.fl_str_mv Zimmer, O.
Dominguez, Cesareo A.
Falomir, Horacio Alberto
Loewe, Marcelo
author Zimmer, O.
author_facet Zimmer, O.
Dominguez, Cesareo A.
Falomir, Horacio Alberto
Loewe, Marcelo
author_role author
author2 Dominguez, Cesareo A.
Falomir, Horacio Alberto
Loewe, Marcelo
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Física
neutron
external quasistatic electric field
dipole moment
nonlinear QED
topic Ciencias Exactas
Física
neutron
external quasistatic electric field
dipole moment
nonlinear QED
dc.description.none.fl_txt_mv It has been shown recently that a neutron placed in an external quasistatic electric field develops an induced electric dipole moment p<sub>IND</sub> due to quantum fluctuations in the QED vacuum. A feasible experiment which could detect such an effect is proposed and described here. It is shown that the peculiar angular dependence of p<sub>IND</sub> on the orientation of the neutron spin leads to a characteristic asymmetry in polarized neutron scattering by heavy nuclei. This asymmetry can be of the order of 10⁻³ for neutrons with epithermal energies. For thermalized neutrons from a hot moderator, one still expects experimentally accessible values of the order of 10⁻⁴. The contribution of the induced effect to the neutron scattering length is expected to be only 1 order of magnitude smaller than that due to the neutron polarizability from its quark substructure. The experimental observation of this scattering asymmetry would be the first ever signal of nonlinearity in electrodynamics due to quantum fluctuations in the QED vacuum.
Facultad de Ciencias Exactas
Instituto de Física La Plata
description It has been shown recently that a neutron placed in an external quasistatic electric field develops an induced electric dipole moment p<sub>IND</sub> due to quantum fluctuations in the QED vacuum. A feasible experiment which could detect such an effect is proposed and described here. It is shown that the peculiar angular dependence of p<sub>IND</sub> on the orientation of the neutron spin leads to a characteristic asymmetry in polarized neutron scattering by heavy nuclei. This asymmetry can be of the order of 10⁻³ for neutrons with epithermal energies. For thermalized neutrons from a hot moderator, one still expects experimentally accessible values of the order of 10⁻⁴. The contribution of the induced effect to the neutron scattering length is expected to be only 1 order of magnitude smaller than that due to the neutron polarizability from its quark substructure. The experimental observation of this scattering asymmetry would be the first ever signal of nonlinearity in electrodynamics due to quantum fluctuations in the QED vacuum.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
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/10915/126240
url http://sedici.unlp.edu.ar/handle/10915/126240
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1550-7998
info:eu-repo/semantics/altIdentifier/issn/1550-2368
info:eu-repo/semantics/altIdentifier/arxiv/1104.1260
info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.85.013004
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
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
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score 13.070432

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