Transients in finite inflation
Cosmology and Nongalactic Astrophysics
2015-10-09 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We test a model of inflation with a fast-rolling kinetic-dominated initial condition against data from Planck using Markov chain Monte Carlo parameter estimation. We test both an potential and the gravity model and perform a full numerical calculation of both the scalar and tensor primordial power spectra. We find a slight (though not significant) improvement in fit for this model over the standard eternal slow-roll case.
Keywords
Cite
@article{arxiv.1503.04872,
title = {Transients in finite inflation},
author = {Andrew Scacco and Andreas Albrecht},
journal= {arXiv preprint arXiv:1503.04872},
year = {2015}
}
Comments
8 pages including 10 figures. V2: Final version accepted for publication in PRD. Various changes to improve the clarity, plus new section (V) on the $R+R^2$ gravity model