Aligned Natural Inflation: Monodromies of two Axions
High Energy Physics - Theory
2014-09-01 v3 Cosmology and Nongalactic Astrophysics
High Energy Physics - Phenomenology
Abstract
Natural (axionic) inflation can accommodate sizeable primordial tensor modes but suffers from the necessity of trans-Planckian variations of the inflaton field. This problem can be solved via the mechanism of aligned axions arXiv:hep-ph/0409138, where the aligned axion spirals down in the potential of other axions. We elaborate on the mechanism in view of the recently reported observations of the BICEP2 collaboration arXiv:1403.3985.
Keywords
Cite
@article{arxiv.1404.7127,
title = {Aligned Natural Inflation: Monodromies of two Axions},
author = {Rolf Kappl and Sven Krippendorf and Hans Peter Nilles},
journal= {arXiv preprint arXiv:1404.7127},
year = {2014}
}
Comments
11 pages, 3 figures, v2: typos corrected, references added, v3: references added, matches published version