Magnetic contributions in Bekenstein type models
- Autores
- Kraiselburd, Lucila; Castillo, Florencia Luciana; Mosquera, Mercedes Elisa; Vucetich, Héctor
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- In this work, we analyze the spatial and time variation of the fine structure constant (α) upon the theoretical framework developed by Bekenstein (Phys. Rev. D 66, 123514 (2002)). We have computed the field ψ related to α at first order of the weak-field approximation and have also improved the estimation of the nuclear magnetic energy and, therefore, their contributions to the source term in the equation of motion of ψ. We obtained that the results are similar to the ones published in L. Kraiselburd and H. Vucetich, Int. J. Mod. Phys. E 20, 101 (2011) which were computed using the zero order of the approximation, showing that one can neglect the first order contribution to the variation of the fine structure constant. Through the comparison between our theoretical results and the observational data of the Eötvös-type experiments or the time variation of α over the cosmological time scale, we set constraints on the free parameter of the Bekenstein model, namely the Bekenstein length.
Facultad de Ciencias Astronómicas y Geofísicas
Facultad de Ciencias Exactas - Materia
-
Astronomía
Cosmology
Determination of fundamental constants
Experimental studies of gravity
Gravitation - 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:10915/138211
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Magnetic contributions in Bekenstein type modelsKraiselburd, LucilaCastillo, Florencia LucianaMosquera, Mercedes ElisaVucetich, HéctorAstronomíaCosmologyDetermination of fundamental constantsExperimental studies of gravityGravitationIn this work, we analyze the spatial and time variation of the fine structure constant (α) upon the theoretical framework developed by Bekenstein (Phys. Rev. D 66, 123514 (2002)). We have computed the field ψ related to α at first order of the weak-field approximation and have also improved the estimation of the nuclear magnetic energy and, therefore, their contributions to the source term in the equation of motion of ψ. We obtained that the results are similar to the ones published in L. Kraiselburd and H. Vucetich, Int. J. Mod. Phys. E 20, 101 (2011) which were computed using the zero order of the approximation, showing that one can neglect the first order contribution to the variation of the fine structure constant. Through the comparison between our theoretical results and the observational data of the Eötvös-type experiments or the time variation of α over the cosmological time scale, we set constraints on the free parameter of the Bekenstein model, namely the Bekenstein length.Facultad de Ciencias Astronómicas y GeofísicasFacultad de Ciencias Exactas2018-02info: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/10915/138211enginfo:eu-repo/semantics/altIdentifier/issn/2470-0010info:eu-repo/semantics/altIdentifier/issn/2470-0029info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.97.043526info:eu-repo/semantics/altIdentifier/arxiv/1801.08594info: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:UNLP2025-09-29T11:32:31Zoai:sedici.unlp.edu.ar:10915/138211Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:32:31.954SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Magnetic contributions in Bekenstein type models |
title |
Magnetic contributions in Bekenstein type models |
spellingShingle |
Magnetic contributions in Bekenstein type models Kraiselburd, Lucila Astronomía Cosmology Determination of fundamental constants Experimental studies of gravity Gravitation |
title_short |
Magnetic contributions in Bekenstein type models |
title_full |
Magnetic contributions in Bekenstein type models |
title_fullStr |
Magnetic contributions in Bekenstein type models |
title_full_unstemmed |
Magnetic contributions in Bekenstein type models |
title_sort |
Magnetic contributions in Bekenstein type models |
dc.creator.none.fl_str_mv |
Kraiselburd, Lucila Castillo, Florencia Luciana Mosquera, Mercedes Elisa Vucetich, Héctor |
author |
Kraiselburd, Lucila |
author_facet |
Kraiselburd, Lucila Castillo, Florencia Luciana Mosquera, Mercedes Elisa Vucetich, Héctor |
author_role |
author |
author2 |
Castillo, Florencia Luciana Mosquera, Mercedes Elisa Vucetich, Héctor |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
Astronomía Cosmology Determination of fundamental constants Experimental studies of gravity Gravitation |
topic |
Astronomía Cosmology Determination of fundamental constants Experimental studies of gravity Gravitation |
dc.description.none.fl_txt_mv |
In this work, we analyze the spatial and time variation of the fine structure constant (α) upon the theoretical framework developed by Bekenstein (Phys. Rev. D 66, 123514 (2002)). We have computed the field ψ related to α at first order of the weak-field approximation and have also improved the estimation of the nuclear magnetic energy and, therefore, their contributions to the source term in the equation of motion of ψ. We obtained that the results are similar to the ones published in L. Kraiselburd and H. Vucetich, Int. J. Mod. Phys. E 20, 101 (2011) which were computed using the zero order of the approximation, showing that one can neglect the first order contribution to the variation of the fine structure constant. Through the comparison between our theoretical results and the observational data of the Eötvös-type experiments or the time variation of α over the cosmological time scale, we set constraints on the free parameter of the Bekenstein model, namely the Bekenstein length. Facultad de Ciencias Astronómicas y Geofísicas Facultad de Ciencias Exactas |
description |
In this work, we analyze the spatial and time variation of the fine structure constant (α) upon the theoretical framework developed by Bekenstein (Phys. Rev. D 66, 123514 (2002)). We have computed the field ψ related to α at first order of the weak-field approximation and have also improved the estimation of the nuclear magnetic energy and, therefore, their contributions to the source term in the equation of motion of ψ. We obtained that the results are similar to the ones published in L. Kraiselburd and H. Vucetich, Int. J. Mod. Phys. E 20, 101 (2011) which were computed using the zero order of the approximation, showing that one can neglect the first order contribution to the variation of the fine structure constant. Through the comparison between our theoretical results and the observational data of the Eötvös-type experiments or the time variation of α over the cosmological time scale, we set constraints on the free parameter of the Bekenstein model, namely the Bekenstein length. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-02 |
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 |
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article |
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http://sedici.unlp.edu.ar/handle/10915/138211 |
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http://sedici.unlp.edu.ar/handle/10915/138211 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/altIdentifier/issn/2470-0010 info:eu-repo/semantics/altIdentifier/issn/2470-0029 info:eu-repo/semantics/altIdentifier/doi/10.1103/physrevd.97.043526 info:eu-repo/semantics/altIdentifier/arxiv/1801.08594 |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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