Hyperbolic inflation in the Jordan frame
General Relativity and Quantum Cosmology
2022-03-29 v1 High Energy Physics - Phenomenology
Mathematical Physics
math.MP
Abstract
We consider a multi-scalar field model in the Jordan frame which can be seen as a two-scalar field model where the Brans-Dicke field interacts in the kinetic part with the second scalar field. This theory under a conformal transformation reduces to the hyperbolic inflation. We show that scaling solutions and the de Sitter universe are provided by theory. In the study of asymptotic dynamics, we determine an attractor where all the fluid sources contribute in the cosmological fluid. This attractor is always a spiral and it can be seen as the analogue of the hyperbolic inflation in the Jordan frame.
Cite
@article{arxiv.2203.14610,
title = {Hyperbolic inflation in the Jordan frame},
author = {Andronikos Paliathanasis},
journal= {arXiv preprint arXiv:2203.14610},
year = {2022}
}
Comments
16 pages, 3 figures