On the quartic curvature gravity in the context of FRW cosmology

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dc.creatorIihoshi, M.
dc.creatorKetov, S. V.
dc.date2008-03-18
dc.date.accessioned2026-07-07T11:33:14Z
dc.date.available2026-07-07T11:33:14Z
dc.descriptionWe consider the purely gravitational fourth-order (in the spacetime curvature) quantum corrections to the Einstein-Hilbert gravity action, coming from superstrings in the leading order with respect to the Regge slope parameter, and study their impact on the evolution of the Hubble scale in the context of the FRW cosmology, in four spacetime dimensions. We propose the generalized Friedmann equations, and rule out the most naive (Bel-Robinson tensor squared) gravity. Our new cosmological equations have exact inflationary solutions without a spacetime singularity.
dc.description8 pages, LaTeX, contribution to the Proceedings of Osaka Workshop `Progress of String Theory and Quantum Field Theory', December 7-10, 2007, at Osaka City University, Japan
dc.identifierhttps://arxiv.org/abs/0803.2577
dc.identifierhttp://arxiv.org/abs/0803.2577
dc.identifierInt.J.Mod.Phys.A23:2153-2160,2008
dc.identifierdoi:10.1142/S0217751X0804069X
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197821
dc.subjectHigh Energy Physics - Theory
dc.titleOn the quartic curvature gravity in the context of FRW cosmology
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