Universality classes for models of inflation
Cosmology and Nongalactic Astrophysics
2015-06-22 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We show that the cosmological evolution of a scalar field in a potential can be obtained from a renormalisation group equation. The slow roll regime of inflation models is understood in this context as the slow evolution close to a fixed point, described by the methods of renormalisation group. This explains in part the universality observed in the predictions of a certain number of inflation models. We illustrate this behavior on a certain number of examples and discuss it in the context of the AdS/CFT correspondence.
Cite
@article{arxiv.1407.0820,
title = {Universality classes for models of inflation},
author = {P. Binetruy and E. Kiritsis and J. Mabillard and M. Pieroni and C. Rosset},
journal= {arXiv preprint arXiv:1407.0820},
year = {2015}
}
Comments
43 pages, 12 figures