Exact solutions to Elko spinors in spatially flat Friedmann-Robertson-Walker spacetimes
High Energy Physics - Theory
2014-03-07 v2
Abstract
In this paper we present exact solutions to the so-called Elko spinors for three models of expanding universe, namely the de Sitter, linear and the radiation type evolution. The study was restrict to flat, homogeneous and isotropic Friedmann-Robertson-Walker backgrounds. Starting with an Elko spinor we present the solutions for these cases and compared to the case of Dirac spinors. Besides, an attempt to use Elko spinors as a dark energy candidate in the cosmological context is investigated.
Cite
@article{arxiv.1401.3252,
title = {Exact solutions to Elko spinors in spatially flat Friedmann-Robertson-Walker spacetimes},
author = {J. M. Hoff da Silva and S. H. Pereira},
journal= {arXiv preprint arXiv:1401.3252},
year = {2014}
}
Comments
18 pages, section IV of last version removed; section on cosmological application rewritten