Evolution of Large Scale Curvature Fluctuations During the Perturbative Decay of the Inflaton

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dc.creatorDi Marco, F.
dc.creatorFinelli, F.
dc.creatorGruppuso, A.
dc.date2007-05-15
dc.date2007-10-10
dc.date.accessioned2026-07-07T12:13:31Z
dc.date.available2026-07-07T12:13:31Z
dc.descriptionWe study the evolution of cosmological fluctuations during and after inflation driven by a scalar field coupled to a perfect fluid through afriction term. During the slow-roll regime for the scalar field, the perfect fluid is also frozen and isocurvature perturbations are generated. After the end of inflation, during the decay of the inflaton, we find that a change in the observationally relevant large scale curvature fluctuations is possible.
dc.description9 pages, 2 figures; v2: version published in PRD
dc.identifierhttps://arxiv.org/abs/0705.2185
dc.identifierhttp://arxiv.org/abs/0705.2185
dc.identifierPhys.Rev.D76:043530,2007
dc.identifierdoi:10.1103/PhysRevD.76.043530
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/210871
dc.subjectAstrophysics
dc.titleEvolution of Large Scale Curvature Fluctuations During the Perturbative Decay of the Inflaton
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