Bouncing Universes in Scalar-Tensor Gravity Around Conformal Invariance Auteur(s): Bruno Boisseau, Giacomini Hector, Polarski D. (Article) Publié: Journal Of Cosmology And Astroparticle Physics, vol. p.1605, 037 (2016) Texte intégral en Openaccess : Ref HAL: hal-01292660_v1 Ref Arxiv: 1603.06648v1 DOI: 10.1088/1475-7516/2016/05/048 WoS: 000378041500049 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote 10 Citations Résumé: We consider the possibility to produce a bouncing universe in the framework of scalar-tensor gravity when the scalar field has a nonconformal coupling to the Ricci scalar. We prove that bouncing universes regular in the future with essentially the same dynamics as for the conformal coupling case do exist when the coupling deviates slightly from it. This is found numerically for more substantial deviations as well. In some cases however new features are found like the ability of the system to leave the effective phantom regime. |