The Super-Planckian Axion Strikes Back
High Energy Physics - Phenomenology
2019-11-27 v1 High Energy Physics - Theory
Abstract
We present a novel framework for obtaining large hierarchies in axion decay constants as well as trans-Planckian field excursions, with no need for tuning or a large number of fields. We consider a model with two or more CFTs with a common cutoff, that are linked by a gauged diagonal symmetry. This construction is dual to the geometry of a warped space with two or more throats glued at a common brane, allowing for calculability. Many applications of our setup are possible,such as ultra-light axions, natural inflation, and relaxion models.
Cite
@article{arxiv.1906.10193,
title = {The Super-Planckian Axion Strikes Back},
author = {Nayara Fonseca and Benedict von Harling and Leonardo de Lima and Camila S. Machado},
journal= {arXiv preprint arXiv:1906.10193},
year = {2019}
}
Comments
5 pages + appendices, 1 figure