Energy production in varying α theories

Aims. On the basis of the theoretical model proposed by Bekenstein for α's variation, we analyze the equations that describe the energy exchange between matter and both the electromagnetic and the scalar fields. Methods. We determine how the energy flow of the material is modified by the pres...

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Detalles Bibliográficos
Autores principales: Kraiselburd, Lucila, Miller Bertolami, Marcelo Miguel, Sisterna, Pablo D., Vucetich, Héctor
Formato: Articulo
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Astronómicas
Cosmology: theory
Planets and satellites: physical evolution
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/84008
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-84008
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Cosmology: theory
Planets and satellites: physical evolution
spellingShingle Ciencias Astronómicas
Cosmology: theory
Planets and satellites: physical evolution
Kraiselburd, Lucila
Miller Bertolami, Marcelo Miguel
Sisterna, Pablo D.
Vucetich, Héctor
Energy production in varying α theories
topic_facet Ciencias Astronómicas
Cosmology: theory
Planets and satellites: physical evolution
description Aims. On the basis of the theoretical model proposed by Bekenstein for α's variation, we analyze the equations that describe the energy exchange between matter and both the electromagnetic and the scalar fields. Methods. We determine how the energy flow of the material is modified by the presence of a scalar field. We estimate the total magnetic energy of matter from the "sum rules techniques". We compare the results with data obtained from the thermal evolution of the Earth and other planets. Results. We obtain stringent upper limits to the variations in α that are comparable with those obtained from atomic clock frequency variations. Conclusions. Our constraints imply that the fundamental length scale of Bekenstein's theory "l<SUB>B</SUB>" cannot be larger than Planck's length "l<SUB>P</SUB>".
format Articulo
Articulo
author Kraiselburd, Lucila
Miller Bertolami, Marcelo Miguel
Sisterna, Pablo D.
Vucetich, Héctor
author_facet Kraiselburd, Lucila
Miller Bertolami, Marcelo Miguel
Sisterna, Pablo D.
Vucetich, Héctor
author_sort Kraiselburd, Lucila
title Energy production in varying α theories
title_short Energy production in varying α theories
title_full Energy production in varying α theories
title_fullStr Energy production in varying α theories
title_full_unstemmed Energy production in varying α theories
title_sort energy production in varying α theories
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/84008
work_keys_str_mv AT kraiselburdlucila energyproductioninvaryingatheories
AT millerbertolamimarcelomiguel energyproductioninvaryingatheories
AT sisternapablod energyproductioninvaryingatheories
AT vucetichhector energyproductioninvaryingatheories
bdutipo_str Repositorios
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