Interdependence between integrable cosmological models with minimal and non-minimal coupling
arXiv, 2015
Online
unknown
Zugriff:
We consider the relation between exact solutions of cosmological models having minimally and non-minimally coupled scalar fields. This is done for a particular class of solvable models which, in the Einstein frame, have potentials depending on hyperbolic functions and in the Jordan frame, where the non-minimal coupling is conformal, possess a relatively simple dynamics. We show that a particular model in this class can be generalized to the cases of closed and open Friedmann universes and still exhibits a simple dynamics. Further we illustrate the conditions for the existences of bounces in some sub-classes of the set of integrable models we have considered.
Comment: 15 pages, v2: figures and references added, accepted for publication in CQG
| Titel: |
Interdependence between integrable cosmological models with minimal and non-minimal coupling
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| Autor/in / Beteiligte Person: | Sergey Yu. Vernov ; Alexander Yu. Kamenshchik ; Venturi, Giovanni ; Tronconi, Alessandro ; Pozdeeva, Ekaterina O. ; Kamenchtchik, A. ; Vernov, Sergey Yu |
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| Veröffentlichung: | arXiv, 2015 |
| Medientyp: | unknown |
| DOI: | 10.48550/arxiv.1509.00590 |
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