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Density perturbations in a Brans-Dicke cosmological model

Abstract

A very general flat solution for Brans-Dicke cosmology with a perfect-fluid, Robertson-Walker metric and a perfect gas law of state is examined regarding density perturbations. The model has growing instabilities, but not of exponential character.

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Berman, M.S. Density perturbations in a Brans-Dicke cosmological model. Int J Theor Phys 29, 1415–1417 (1990). https://doi.org/10.1007/BF00674121

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Keywords

  • Field Theory
  • Elementary Particle
  • Quantum Field Theory
  • Cosmological Model
  • Density Perturbation