First-order formalism for dark energy and dust
Astrophysics
2009-07-24 v3 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
This work deals with first-order formalism for dark energy and dust in standard cosmology, for models described by real scalar field in the presence of dust in spatially flat space. The field dynamics may be standard or tachyonic, and we show how the equations of motion can be solved by first-order differential equations. We investigate a model to illustrate how the dustlike matter may affect the cosmic evolution using this framework.
Cite
@article{arxiv.astro-ph/0611770,
title = {First-order formalism for dark energy and dust},
author = {D. Bazeia and L. Losano and J. J. Rodrigues and R. Rosenfeld},
journal= {arXiv preprint arXiv:astro-ph/0611770},
year = {2009}
}
Comments
5 pages, 1 figure; title changed, new author included, discussions extended, references added, version to appear in EPJC