First-order formalism and dark energy
Astrophysics
2009-11-13 v1 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
This work deals with cosmological models driven by real scalar field, described by standard dynamics in generic spherical, flat, and hyperbolic geometries. We introduce a first-order formalism, which shows how to relate the potential that specifies the scalar field model to Hubble's parameter in a simple and direct manner. Extensions to tachyonic dynamics, and to two or more real scalar fields are also presented.
Keywords
Cite
@article{arxiv.astro-ph/0512197,
title = {First-order formalism and dark energy},
author = {D. Bazeia and C. B. Gomes and L. Losano and R. Menezes},
journal= {arXiv preprint arXiv:astro-ph/0512197},
year = {2009}
}
Comments
7 pages, 3 figures