Dark matter, dark energy, and dark radiation coupled with a transversal interaction

We investigate a cosmological scenario with three interacting components that includes dark matter, dark energy, and radiation in the spatially flat Friedmann-Robertson-Walker universe. We introduce a 3-dimensional internal space, the interaction vector Q=(Q x,Q m,Q r) satisfying the constraint plan...

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Detalles Bibliográficos
Autores principales:	Chimento, Luis Pascual, Richarte, Martín Gustavo
Publicado:	2012
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v86_n10_p_Chimento http://hdl.handle.net/20.500.12110/paper_15507998_v86_n10_p_Chimento
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_15507998_v86_n10_p_Chimento
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spelling	paper:paper_15507998_v86_n10_p_Chimento2023-06-08T16:22:30Z Dark matter, dark energy, and dark radiation coupled with a transversal interaction Chimento, Luis Pascual Richarte, Martín Gustavo We investigate a cosmological scenario with three interacting components that includes dark matter, dark energy, and radiation in the spatially flat Friedmann-Robertson-Walker universe. We introduce a 3-dimensional internal space, the interaction vector Q=(Q x,Q m,Q r) satisfying the constraint plane Q x+Q m+Q r=0, the barotropic index vector γ=(γ x,γ m, γ r) and select a transversal interaction vector Q t in a sense that Q t•γ=0. We exactly solve the source equation for a linear Q t, that depends on the total energy density and its derivatives up to third order, and find all the component energy densities. We obtain a large set of interactions for which the source equation admits a power law solution and show its asymptotic stability by constructing the Lyapunov function. We apply the χ2 method to the observational Hubble data for constraining the cosmic parameters, and analyze the amount of dark energy in the radiation era for the above linear Q t. It turns to be that our model fulfills the severe bound of Ω x(z1100)<0.1 and is consistent with the future constraints achievable by Planck and CMBPol experiments. © 2012 American Physical Society. Fil:Chimento, L.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Richarte, M.G. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v86_n10_p_Chimento http://hdl.handle.net/20.500.12110/paper_15507998_v86_n10_p_Chimento
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description	We investigate a cosmological scenario with three interacting components that includes dark matter, dark energy, and radiation in the spatially flat Friedmann-Robertson-Walker universe. We introduce a 3-dimensional internal space, the interaction vector Q=(Q x,Q m,Q r) satisfying the constraint plane Q x+Q m+Q r=0, the barotropic index vector γ=(γ x,γ m, γ r) and select a transversal interaction vector Q t in a sense that Q t•γ=0. We exactly solve the source equation for a linear Q t, that depends on the total energy density and its derivatives up to third order, and find all the component energy densities. We obtain a large set of interactions for which the source equation admits a power law solution and show its asymptotic stability by constructing the Lyapunov function. We apply the χ2 method to the observational Hubble data for constraining the cosmic parameters, and analyze the amount of dark energy in the radiation era for the above linear Q t. It turns to be that our model fulfills the severe bound of Ω x(z1100)<0.1 and is consistent with the future constraints achievable by Planck and CMBPol experiments. © 2012 American Physical Society.
author	Chimento, Luis Pascual Richarte, Martín Gustavo
spellingShingle	Chimento, Luis Pascual Richarte, Martín Gustavo Dark matter, dark energy, and dark radiation coupled with a transversal interaction
author_facet	Chimento, Luis Pascual Richarte, Martín Gustavo
author_sort	Chimento, Luis Pascual
title	Dark matter, dark energy, and dark radiation coupled with a transversal interaction
title_short	Dark matter, dark energy, and dark radiation coupled with a transversal interaction
title_full	Dark matter, dark energy, and dark radiation coupled with a transversal interaction
title_fullStr	Dark matter, dark energy, and dark radiation coupled with a transversal interaction
title_full_unstemmed	Dark matter, dark energy, and dark radiation coupled with a transversal interaction
title_sort	dark matter, dark energy, and dark radiation coupled with a transversal interaction
publishDate	2012
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v86_n10_p_Chimento http://hdl.handle.net/20.500.12110/paper_15507998_v86_n10_p_Chimento
work_keys_str_mv	AT chimentoluispascual darkmatterdarkenergyanddarkradiationcoupledwithatransversalinteraction AT richartemartingustavo darkmatterdarkenergyanddarkradiationcoupledwithatransversalinteraction
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Dark matter, dark energy, and dark radiation coupled with a transversal interaction

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