Consistency Condition for Slow-roll and Rapid-turn Inflation
High Energy Physics - Theory
2025-04-09 v2 Cosmology and Nongalactic Astrophysics
General Relativity and Quantum Cosmology
Abstract
We summarize our work on a consistency condition for inflation in two-field cosmological models, in the regime of rapid turn and third-order slow roll. To ensure a sustained inflationary period of this type, one needs to satisfy a certain relation between the scalar potential and the scalar field-space metric. We explain the derivation of this condition. Furthermore, we argue that, generically, the rapid-turn phase tends to be short-lived.
Keywords
Cite
@article{arxiv.2311.18683,
title = {Consistency Condition for Slow-roll and Rapid-turn Inflation},
author = {Lilia Anguelova and Calin Iuliu Lazaroiu},
journal= {arXiv preprint arXiv:2311.18683},
year = {2025}
}
Comments
16 pages, contribution to the proceedings of the 15th international workshop "Lie Theory and its Applications in Physics", Varna, 2023; appendix with examples added