Note on the Evolution of the Gravitational Potential in Rastall Scalar Field Theories

J. C. Fabris; M. Hamani Daouda; O. F. Piattella

doi:10.1016/j.physletb.2012.04.020

Note on the Evolution of the Gravitational Potential in Rastall Scalar Field Theories

Cosmology and Nongalactic Astrophysics 2012-04-27 v2 General Relativity and Quantum Cosmology

Authors: J. C. Fabris , M. Hamani Daouda , O. F. Piattella

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Abstract

We investigate the evolution of the gravitational potential in Rastall scalar field theories. In a single component model a consistent perturbation theory, formulated in the newtonian gauge, is possible only for $\gamma = 1$ , which is the General Relativity limit. On the other hand, the addition of another canonical fluid component allows also to consider the case $\gamma \neq 1$ .

Keywords

gravitational potential Rastall scalar field theory perturbation theory newtonian gauge General Relativity

Cite

@article{arxiv.1109.2096,
  title  = {Note on the Evolution of the Gravitational Potential in Rastall Scalar Field Theories},
  author = {J. C. Fabris and M. Hamani Daouda and O. F. Piattella},
  journal= {arXiv preprint arXiv:1109.2096},
  year   = {2012}
}

Comments

16 pages, 3 figures, Sections 2 and 5 enlarged, accepted for publication in Physics Letters B

Note on the Evolution of the Gravitational Potential in Rastall Scalar Field Theories

Abstract

Keywords

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