par Gunzig, Edgard ;Saa, Alberto;Brenig, Léon ;Faraoni, Valerio ;Rocha Filho, T. M.;Figueiredo, A.
Référence Physical Review D (Particles, Fields, Gravitation and Cosmology), 63, 6, page (067301)
Publication Publié, 2001
Article révisé par les pairs
Résumé : The dynamics of a universe dominated by a self-interacting nonminimally coupled scalar field are considered. The structure of the phase space and complete phase portraits are given. New dynamical behaviors include superinflation (Formula presented) avoidance of big bang singularities through classical birth of the universe, and spontaneous entry into and exit from inflation. This model is promising for describing quintessence as a nonminimally coupled scalar field. © 2001 The American Physical Society.