Swampland, Axions and Minimal Warm Inflation
High Energy Physics - Theory
2020-05-27 v3 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Warm inflation has been noted previously as a possible way to implement inflationary models compatible with the dS swampland bounds. But often in these discussions the heat bath dynamics is kept largely unspecified. We point out that the recently introduced Minimal Warm Inflation of arXiv:1910.07525, where an axionic coupling of the inflaton leads to an explicit model for the thermal bath, yields models of inflation that can easily fit cosmological observations while satisfying de Sitter swampland bounds, as well as the swampland distance bound and trans-Planckian censorship.
Keywords
Cite
@article{arxiv.1911.00323,
title = {Swampland, Axions and Minimal Warm Inflation},
author = {Suratna Das and Gaurav Goswami and Chethan Krishnan},
journal= {arXiv preprint arXiv:1911.00323},
year = {2020}
}
Comments
v3: Version accepted in Phys. Rev. D