Loop effects and infrared divergences in slow-roll inflation
High Energy Physics - Theory
2013-05-01 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
Loop corrections to observables in slow-roll inflation are found to diverge no worse than powers of the log of the scale factor, extending Weinberg's theorem to quasi-single field inflation models. Demanding perturbation theory be valid during primordial inflation leads to constraints on the effective lagrangian. This leads to some interesting constraints and coincidences on the landscape of inflationary vacua.
Keywords
Cite
@article{arxiv.1301.4274,
title = {Loop effects and infrared divergences in slow-roll inflation},
author = {Klaus Larjo and David A. Lowe},
journal= {arXiv preprint arXiv:1301.4274},
year = {2013}
}
Comments
17 pages, 2 figures, minor changes