Viability of f(R) Theories with Additional Powers of Curvature

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dc.creatorBrookfield, Anthony W.
dc.creatorvan de Bruck, Carsten
dc.creatorHall, Lisa M. H.
dc.date2006-08-02
dc.date2006-11-29
dc.date.accessioned2026-07-07T11:06:58Z
dc.date.available2026-07-07T11:06:58Z
dc.descriptionWe consider a modified gravity theory, f(R)=R-a/R^n+bR^m, in the metric formulation, which has been suggested to produce late time acceleration in the Universe, whilst satisfying local fifth-force constraints. We investigate the parameter range for this theory, considering the regimes of early and late-time acceleration, Big Bang Nucleosynthesis and fifth-force constraints. We conclude that it is difficult to find a unique range of parameters for consistency of this theory.
dc.descriptionReplaced to match version published in Phys. Rev. D. - corrected references and minor typos. 26 pages, revtex, 10 eps figures, 1 diagram
dc.identifierhttps://arxiv.org/abs/hep-th/0608015
dc.identifierhttp://arxiv.org/abs/hep-th/0608015
dc.identifierPhys.Rev.D74:064028,2006
dc.identifierdoi:10.1103/PhysRevD.74.064028
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189697
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleViability of f(R) Theories with Additional Powers of Curvature
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