Topological Inflation with Large Tensor-to-scalar Ratio
Cosmology and Nongalactic Astrophysics
2014-07-15 v3 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
BICEP2's detection on the primordial B-mode of CMB polarization suggests that inflation occurred around GUT scale, with the tensor-to-scalar ratio r~0.2. Inspired by this discosvery, we study the topological inflation which was driven by a double/single/no well potential. We show that with proper choice of parameters, all these three types of topological inflationary models could be consistent with the constraints from current observations.
Keywords
Cite
@article{arxiv.1404.1680,
title = {Topological Inflation with Large Tensor-to-scalar Ratio},
author = {Yu-Chieh Chung and Chunshan Lin},
journal= {arXiv preprint arXiv:1404.1680},
year = {2014}
}
Comments
5 pages, 6 figures, PRD format; v2 typos corrected, references added