Space-time Evolution and CMB Anisotropies from Quantum Gravity

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dc.creatorHamada, Ken-ji
dc.creatorHorata, Shinichi
dc.creatorYukawa, Tetsuyuki
dc.date2006-07-26
dc.date2006-11-30
dc.date.accessioned2026-07-07T10:23:22Z
dc.date.available2026-07-07T10:23:22Z
dc.descriptionWe propose an evolutional scenario of the universe which starts from quantum states with conformal invariance, passing through the inflationary era, and then makes transition to the conventional Einstein space-time. The space-time dynamics is derived from the renormalizable higher-derivative quantum gravity developed on the basis of a renormalizable conformal gravity in four dimensions. Based on the linear perturbation theory in the inflationary background, we simulate evolutions of gravitational scalar, vector and tensor perturbations, and evaluate the spectra at the transition point located at the beginning of the big bang. The obtained spectra cover the range of the primordial spectra for explaining the tiny anisotropy in the homogeneous CMB.
dc.description30 pages, 6 figures. Version to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/astro-ph/0607586
dc.identifierhttp://arxiv.org/abs/astro-ph/0607586
dc.identifierPhys.Rev.D74:123502,2006
dc.identifierdoi:10.1103/PhysRevD.74.123502
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/175803
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleSpace-time Evolution and CMB Anisotropies from Quantum Gravity
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