Realization of blue spectrum in generalized Galileon super-inflation models
General Relativity and Quantum Cosmology
2018-01-10 v2 Cosmology and Nongalactic Astrophysics
Abstract
In the spirit of Galileon inflation and by considering some sorts of non-canonical kinetic terms in the action, we realize a stage of super-inflation leading to a blue-tilted tensor perturbation. We show also that addition of Galileon-like term to the action leads to avoidance of ghost instabilities in this setup.
Keywords
Cite
@article{arxiv.1712.09530,
title = {Realization of blue spectrum in generalized Galileon super-inflation models},
author = {K. Nozari and S. Shafizadeh},
journal= {arXiv preprint arXiv:1712.09530},
year = {2018}
}
Comments
15 pages, 6 figures, revised version