Chain inflation and the imprint of fundamental physics in the CMBR

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

In 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.
16 pages

Keywords

High Energy Physics - Theory, Astrophysics, General Relativity and Quantum Cosmology

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/224673

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0809.2707
 http://arxiv.org/abs/0809.2707
 JCAP 0903:007,2009
 doi:10.1088/1475-7516/2009/03/007

Collections

arXiv