$\mathcal{N}$-field cosmology in hyperbolic field space: stability and general solutions
General Relativity and Quantum Cosmology
2021-06-01 v2 High Energy Physics - Theory
Abstract
We study the dynamics of a cosmological model with a perfect fluid and fields on a hyperbolic field space interacting via a symmetric potential. We list all late-time solutions, investigate their stability and briefly discuss predictions of the theory. Moreover, for the case of two scalar fields and an exponential potential we prove that the field equations are Liouville integrable and we provide for the first time the general solution for a region of the parameter space.
Keywords
Cite
@article{arxiv.2101.09582,
title = {$\mathcal{N}$-field cosmology in hyperbolic field space: stability and general solutions},
author = {Perseas Christodoulidis and Andronikos Paliathanasis},
journal= {arXiv preprint arXiv:2101.09582},
year = {2021}
}
Comments
v2: refs added and small rearrangements to match published version; v1: 14 pages, 7 figures