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Quantum and classical cosmology in the Brans-Dicke theory

Autor: Almeida, Carla R., Galkina, O., Fabris, J. C.

In this paper we discuss classical and quantum aspects of cosmological models in Brans-Dicke theory. First, we review cosmological bounce solution in Brans-Dicke theory that obeys energy conditions (without ghost) for a universe filled with radiative

Externí odkaz: http://arxiv.org/abs/2106.14299

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Regular Bouncing Solutions, Energy Conditions and the Brans-Dicke Theory

Autor: Galkina, O., Fabris, J. C., Falciano, F. T., Pinto-Neto, N.

In general, to avoid a singularity in cosmological models involves the introduction of exotic kind of matter fields, for example, a scalar field with negative energy density. In order to have a bouncing solution in classical General Relativity, viola

Externí odkaz: http://arxiv.org/abs/1908.04258

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