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

  • O. GalkinaEmail author
  • J. C. Fabris
  • F. T. Falciano
  • N. Pinto-Neto


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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Copyright information

© Pleiades Publishing, Inc. 2019

Authors and Affiliations

  • O. Galkina
    • 1
    Email author
  • J. C. Fabris
    • 2
  • F. T. Falciano
    • 3
  • N. Pinto-Neto
    • 4
  1. 1.Programa de Pós-Graduação em Física, CCEUniversidade Federal do Espírito SantoVitóriaBrazil
  2. 2.Núcleo Cosmo-ufes & Departamento de FísicaUniversidade Federal do Espírito SantoVitóriaBrazil
  3. 3.National Research Nuclear University MEPhIMoscowRussia
  4. 4.CBPF - Centro Brasileiro de Pesquisas FísicasRio de JaneiroBrazil

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