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Superinflation and quintessence in the presence of an extra field

A. Figueiredo·T. M. Rocha Filho·E. Gunzig·L. Brenig·A. Saa
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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.

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A. Figueiredo, T. M. Rocha Filho, E. Gunzig, L. Brenig, A. Saa. 2002-10-26. Superinflation and quintessence in the presence of an extra field. https://arxiv.org/abs/gr-qc/0210090

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