Cosmological implications of Bumblebee vector models
General Relativity and Quantum Cosmology
2015-05-27 v2
Abstract
The Bumblebee Model of spontaneous Lorentz symmetry breaking is explored in a cosmological context, considering a single non-zero time component for the vector field. The relevant dynamic equations for the evolution of the Universe are derived and its properties and physical significance studied. We conclude that a late-time de Sitter expansion of the Universe can be replicated, and attempt to constrain the parameter of the potential driving the spontaneous symmetry breaking.
Cite
@article{arxiv.1501.07685,
title = {Cosmological implications of Bumblebee vector models},
author = {Diogo Capelo and Jorge Páramos},
journal= {arXiv preprint arXiv:1501.07685},
year = {2015}
}
Comments
11 pages, 10 figures, 1 table. Accepted for publication in PRD