Back reaction of a long range force on a Friedmann-Robertson-Walker background
High Energy Physics - Phenomenology
2009-10-31 v1 Astrophysics
Abstract
It is possible that there may exist long-range forces in addition to gravity. In this paper we construct a simple model for such a force based on exchange of a massless scalar field and analyze its effect on the evolution of a homogeneous Friedmann-Robertson-Walker cosmology. The presence of such an interaction leads to an equation of state characterized by positive pressure and to resonant particle production similar to that observed in preheating scenarios.
Keywords
Cite
@article{arxiv.hep-ph/0006067,
title = {Back reaction of a long range force on a Friedmann-Robertson-Walker background},
author = {Martina Brisudova and William H. Kinney},
journal= {arXiv preprint arXiv:hep-ph/0006067},
year = {2009}
}
Comments
14 pages, 6 color Postscript figures, LaTeX