A Minimal Model for Dilatonic Gravity

P. P. Fiziev

doi:10.1142/S0217732300002553

A Minimal Model for Dilatonic Gravity

General Relativity and Quantum Cosmology 2009-10-31 v3 Astrophysics High Energy Physics - Phenomenology High Energy Physics - Theory

Authors: P. P. Fiziev

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Abstract

We study a new minimal scalar-tensor model of gravity with Brans-Dicke factor $\omega(\Phi)\equiv 0$ and cosmological factor $\Pi(\Phi)$ . The constraints on $\Pi(\Phi)$ from known gravitational experiments are derived. We show that almost any time evolution of the scale factor in a homogeneous isotropic Universe can be obtained via properly chosen $\Pi(\Phi)$ and discuss the general properties of models of this type.

Keywords

modified gravity scalar field cosmology quantum gravity

Cite

@article{arxiv.gr-qc/9911037,
  title  = {A Minimal Model for Dilatonic Gravity},
  author = {P. P. Fiziev},
  journal= {arXiv preprint arXiv:gr-qc/9911037},
  year   = {2009}
}

Comments

10 pages, LaTeX, no figures. A new Appendex added, new references, comments and acknowledgments added, typos corrected. Final version: to appear in Modern Physics Letters A

A Minimal Model for Dilatonic Gravity

Abstract

Keywords

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