FRW Cosmological Perturbations in Massive Bigravity

Cosmological perturbations of FRW solutions in ghost free massive bigravity, including also a second matter sector, are studied in detail. At early time, we find that sub horizon exponential instabilities are unavoidable and they lead to a premature departure from the perturbative regime of cosmolog...

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Detalles Bibliográficos
Autores principales: Comelli, D., Crisostomi, M., Pilo, L.
Lenguaje:eng
Publicado: 2014
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.90.084003
http://cds.cern.ch/record/1670744
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author Comelli, D.
Crisostomi, M.
Pilo, L.
author_facet Comelli, D.
Crisostomi, M.
Pilo, L.
author_sort Comelli, D.
collection CERN
description Cosmological perturbations of FRW solutions in ghost free massive bigravity, including also a second matter sector, are studied in detail. At early time, we find that sub horizon exponential instabilities are unavoidable and they lead to a premature departure from the perturbative regime of cosmological perturbations.
id cern-1670744
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-16707442021-07-29T05:38:42Zdoi:10.1103/PhysRevD.90.084003http://cds.cern.ch/record/1670744engComelli, D.Crisostomi, M.Pilo, L.FRW Cosmological Perturbations in Massive BigravityParticle Physics - TheoryCosmological perturbations of FRW solutions in ghost free massive bigravity, including also a second matter sector, are studied in detail. At early time, we find that sub horizon exponential instabilities are unavoidable and they lead to a premature departure from the perturbative regime of cosmological perturbations.Cosmological perturbations of Friedmann-Robertson-Walker solutions in ghost free massive bigravity, including also a second matter sector, are studied in detail. At early time, we find that subhorizon exponential instabilities are unavoidable and they lead to a premature departure from the perturbative regime of cosmological perturbations.Cosmological perturbations of FRW solutions in ghost free massive bigravity, including also a second matter sector, are studied in detail. At early time, we find that sub horizon exponential instabilities are unavoidable and they lead to a premature departure from the perturbative regime of cosmological perturbations.arXiv:1403.5679CERN-PH-TH-2014-045CERN-PH-TH-2014-045oai:cds.cern.ch:16707442014-03-22
spellingShingle Particle Physics - Theory
Comelli, D.
Crisostomi, M.
Pilo, L.
FRW Cosmological Perturbations in Massive Bigravity
title FRW Cosmological Perturbations in Massive Bigravity
title_full FRW Cosmological Perturbations in Massive Bigravity
title_fullStr FRW Cosmological Perturbations in Massive Bigravity
title_full_unstemmed FRW Cosmological Perturbations in Massive Bigravity
title_short FRW Cosmological Perturbations in Massive Bigravity
title_sort frw cosmological perturbations in massive bigravity
topic Particle Physics - Theory
url https://dx.doi.org/10.1103/PhysRevD.90.084003
http://cds.cern.ch/record/1670744
work_keys_str_mv AT comellid frwcosmologicalperturbationsinmassivebigravity
AT crisostomim frwcosmologicalperturbationsinmassivebigravity
AT pilol frwcosmologicalperturbationsinmassivebigravity

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