Cosmology with a long range repulsive force
Abstract
We consider a class of cosmological models in which the universe is filled with a (non-electric) charge density that repels itself by means of a force carried by a vector boson with a tiny mass. When the vector's mass depends upon other fields, the repulsive interaction gives rise to an electromagnetic barrier which prevents these fields from driving the mass to zero. This can modify the cosmology dramatically. We present a very simple realization of this idea in which the vector's mass arises from a scalar field. The electromagnetic barrier prevents this field from rolling down its potential and thereby leads to accelerated expansion.
Cite
@article{arxiv.hep-ph/0110174,
title = {Cosmology with a long range repulsive force},
author = {Martina Brisudova and William H. Kinney and Richard Woodard},
journal= {arXiv preprint arXiv:hep-ph/0110174},
year = {2009}
}
Comments
15 pages, 8 figures, LaTeX (version accepted for publication in PRD). 3 new figures, extended discussion of observational consequences