Semiclassical Approximations to Cosmological Perturbations

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dc.creatorLuzzi, Mattia
dc.date2007-05-24
dc.date.accessioned2026-07-07T08:03:14Z
dc.date.available2026-07-07T08:03:14Z
dc.descriptionWe apply several methods related to the WKB approximation to study cosmological perturbations during inflation, obtaining the full power spectra of scalar and tensor perturbations to first and to second order in the slow-roll parameters. We compare our results with those derived by means of other methods, in particular the Green's function method, and find agreement for the slow-roll structure. Scalar wave propagation on the Schwarzschild background is also considered.
dc.descriptionPh.D. thesis, University of Bologna, 148 pages
dc.identifierhttps://arxiv.org/abs/0705.3764
dc.identifierhttp://arxiv.org/abs/0705.3764
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/129506
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleSemiclassical Approximations to Cosmological Perturbations
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