Chain inflation and the imprint of fundamental physics in the CMBR

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dc.creatorChialva, Diego
dc.creatorDanielsson, Ulf H.
dc.date2008-09-16
dc.date.accessioned2026-07-07T12:56:42Z
dc.date.available2026-07-07T12:56:42Z
dc.descriptionIn this work we investigate characteristic modifications of the spectrum of cosmological perturbations and the spectral index due to chain inflation. We find two types of effects. First, modifications of the spectral index depending on interactions between radiation and the vacuum, and on features of the effective vacuum potential of the underlying fundamental theory. Second, a modulation of the spectrum signalling new physics due to bubble nucleation. This effect is similar to those of transplanckian physics. Measurements of such signatures could provide a wealth of information on the fundamental physics at the basis of inflation.
dc.description16 pages
dc.identifierhttps://arxiv.org/abs/0809.2707
dc.identifierhttp://arxiv.org/abs/0809.2707
dc.identifierJCAP 0903:007,2009
dc.identifierdoi:10.1088/1475-7516/2009/03/007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/224673
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleChain inflation and the imprint of fundamental physics in the CMBR
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