Regular Bouncing Solutions, Energy Conditions and the Brans-Dicke Theory
Autor: | Galkina, O., Fabris, J. C., Falciano, F. T., Pinto-Neto, N. |
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Rok vydání: | 2019 |
Předmět: | |
Druh dokumentu: | Working Paper |
DOI: | 10.1134/S0021364019200013 |
Popis: | 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. Comment: 5 pages, 2 figures, accepted for publication in JETP Letters |
Databáze: | arXiv |
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