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arXiv · 1908.04258

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

O. Galkina·J. C. Fabris·F. T. Falciano·N. Pinto-Neto
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Abstract

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, violation of the energy conditions is required. In this work, we discuss a case of the bouncing solution in the Brans-Dicke theory with radiative fluid that obeys the energy conditions, and with no ghosts.

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O. Galkina, J. C. Fabris, F. T. Falciano, N. Pinto-Neto. 2019-08-12. Regular Bouncing Solutions, Energy Conditions and the Brans-Dicke Theory. https://doi.org/10.1134/s0021364019200013

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