Friedmann Equation for Brans Dicke Cosmology

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dc.creatorArik, M.
dc.creatorCalik, M. C.
dc.creatorSheftel, M. B.
dc.date2006-04-19
dc.date2008-09-10
dc.date.accessioned2026-07-07T11:26:23Z
dc.date.available2026-07-07T11:26:23Z
dc.descriptionIn the context of Brans-Dicke scalar tensor theory of gravitation, the cosmological Friedmann equation which relates the expansion rate $H$ of the universe to the various fractions of energy density is analyzed rigorously. It is shown that Brans-Dicke scalar tensor theory of gravitation brings a negligible correction to the matter density component of Friedmann equation. Besides, in addition to $Ω_Λ$ and $Ω_{M}$ in standard Einstein cosmology, another density parameter, $Ω_{_Δ}$, is expected by the theory. This implies that if $Ω_{_Δ}$ is found to be nonzero, data will favor this model instead of the standard Einstein cosmological model with cosmological constant and will enable more accurate predictions for the rate of change of Newtonian gravitational constant in the future.
dc.descriptionminor reference changes
dc.identifierhttps://arxiv.org/abs/gr-qc/0604082
dc.identifierhttp://arxiv.org/abs/gr-qc/0604082
dc.identifierInt.J.Mod.Phys.D17:225-235,2008
dc.identifierdoi:10.1142/S0218271808011961
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/195806
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleFriedmann Equation for Brans Dicke Cosmology
dc.typetext

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