Initial Conditions for Vector Inflation
General Relativity and Quantum Cosmology
2014-11-18 v3 Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
Recently, a model of inflation using non-minimally coupled massive vector fields has been proposed. For a particular choice of non-minimal coupling parameter and for a flat FRW model, the model is reduced to the model of chaotic inflation with massive scalar field. We study the effect of non-zero curvature of the universe on the onset of vector inflation. We find that in a curved universe the dynamics of vector inflation can be different from chaotic inflation, and the fraction of the initial conditions leading to inflationary solutions is reduced compared with the chaotic inflation case.
Keywords
Cite
@article{arxiv.0805.4660,
title = {Initial Conditions for Vector Inflation},
author = {Takeshi Chiba},
journal= {arXiv preprint arXiv:0805.4660},
year = {2014}
}
Comments
12 pages, 5 figures, version to be published in JCAP