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Superinflation and Quintessence in the Presence of an Extra Field |
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| Authors: | A Figueiredo T M Rocha Filho E Gunzig L Brenig A Saa |
| Institution: | (1) Departamento de Física, Universidade de Brasília, Brasília, DF, Brazil;(2) Instituts Internationaux de Chimie et de Physique Solvay, RggR, Université Libre de Bruxelles, Bruxelles, Belgium;(3) Service de Physique Statistique, Université Libre de Bruxelles, Bruxelles, Belgium;(4) Departamento de Matematica Aplicada, IMECC–UNICAMP, Campinas, SP, Brazil |
| Abstract: | We discuss the implication of the introduction of an extra field to the dynamics of a scalar field conformally coupled to gravitation in a homogeneous isotropic spatially flat universe. We show that for some reasonable parameter values the dynamical effects are similar to those of our previous model with a single scalar field. Nevertheless, for other parameter values new dynamical effects are obtained. |
| Keywords: | scalar field nonminimal coupling fixed points |
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