Hillclimbing inflation in metric and Palatini formulations
General Relativity and Quantum Cosmology
2019-03-21 v2 High Energy Physics - Phenomenology
Abstract
A new setup of cosmic inflation with a periodic inflaton potential and conformal factor is discussed in the metric and Palatini formulations of gravity. As a concrete example, we focus on a natural-inflation-like inflaton potential, and show that the inflationary predictions fall into the allowed region of cosmic microwave background observations in both formulations.
Keywords
Cite
@article{arxiv.1812.11077,
title = {Hillclimbing inflation in metric and Palatini formulations},
author = {Ryusuke Jinno and Kunio Kaneta and Kin-ya Oda and Seong Chan Park},
journal= {arXiv preprint arXiv:1812.11077},
year = {2019}
}
Comments
8 pages, 9 figures