Bianchi-I cosmologies with a scalar field and an ultrarelativistic gas in Einstein-Cartan theory

A.M. Galiakhmetov1

Abstract

In the framework of the Einstein-Cartan theory, Bianchi I cosmological models containing a nonminimally coupled scalar field with a potential and an ultrarelativistic gas are considered. Exact special solutions of the gravitational and scalar field equations are obtained for an arbitrary coupling constant. It is shown that nonsingular models are possible. The role of the potential and the ultrarelativistic gas in the evolution of models is elucidated.

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