Towards Axionic Starobinsky-like Inflation in String Theory
High Energy Physics - Theory
2015-05-06 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
It is shown that Starobinsky-like potentials can be realized in non-geometric flux compactifications of string theory, where the inflaton involves an axion whose shift symmetry can protect UV-corrections to the scalar potential. For that purpose we evaluate the backreacted, uplifted F-term axion-monodromy potential, which interpolates between a quadratic and a Starobinsky-like form. Limitations due to the requirements of having a controlled approximation of the UV theory and of realizing single-field inflation are discussed.
Keywords
Cite
@article{arxiv.1503.01607,
title = {Towards Axionic Starobinsky-like Inflation in String Theory},
author = {Ralph Blumenhagen and Anamaria Font and Michael Fuchs and Daniela Herschmann and Erik Plauschinn},
journal= {arXiv preprint arXiv:1503.01607},
year = {2015}
}
Comments
6 pages, 6 figures; v2: important corrections, results modified, references added