Tensor-to-Scalar Ratio in Eddington-inspired Born-Infeld Inflation
General Relativity and Quantum Cosmology
2014-11-19 v2 High Energy Physics - Theory
Abstract
We investigate the scalar perturbation of the inflation model driven by a massive-scalar field in Eddington-inspired Born-Infeld gravity. We focus on the perturbation at the attractor stage in which the first and the second slow-roll conditions are satisfied. The scalar perturbation exhibits the corrections to the chaotic inflation model in general relativity. We find that the tensor-to-scalar ratio becomes smaller than that of the usual chaotic inflation.
Keywords
Cite
@article{arxiv.1408.2652,
title = {Tensor-to-Scalar Ratio in Eddington-inspired Born-Infeld Inflation},
author = {Inyong Cho and Naveen K. Singh},
journal= {arXiv preprint arXiv:1408.2652},
year = {2014}
}
Comments
9 pages. revised version to appear in EPJC, with minor typo corrections. arXiv admin note: text overlap with arXiv:1404.6081