New Integrable Chiral Cosmological Models with Two Scalar Fields
General Relativity and Quantum Cosmology
2024-11-18 v3 Cosmology and Nongalactic Astrophysics
Mathematical Physics
math.MP
Abstract
We construct integrable chiral cosmological models with two scalar fields and potentials represented in terms of hyperbolic functions. Using the conformal transformation of the metric and the corresponding models with induced gravity terms, we obtain the general solutions in the spatially flat, open and closed Friedmann universes and the corresponding integrals of motion. The obtained general solutions can be written in terms of the Jacobi elliptic functions of the conformal time.
Cite
@article{arxiv.2407.12732,
title = {New Integrable Chiral Cosmological Models with Two Scalar Fields},
author = {Vsevolod R. Ivanov and Sergey Yu. Vernov},
journal= {arXiv preprint arXiv:2407.12732},
year = {2024}
}
Comments
21 pages, v3: typos corrected, to appear in Phys. Rev. D