Step potentials for Dark Energy
Cosmology and Nongalactic Astrophysics
2012-10-17 v1 General Relativity and Quantum Cosmology
Abstract
We consider a reconstructing scheme using observational data from SNIa, BAO and CMB, based on a model of dark unification using a single non-minimally coupled scalar field. We investigate through a reconstruction program, the main features the current observational data imposes to the scalar field potential. We found that the form suggested by observations implies a step feature in the potential, where the kinetic and potential energy becomes of the same order of magnitude.
Keywords
Cite
@article{arxiv.1210.4439,
title = {Step potentials for Dark Energy},
author = {Victor H. Cardenas and Marco Rivera},
journal= {arXiv preprint arXiv:1210.4439},
year = {2012}
}
Comments
Proceedings of I CosmoSul - Cosmology and Gravitation in Southern Cone (Rio de Janeiro, 2011). Eds: J. S. Alcaniz, S. Carneiro, L. P. Chimento, S. del Campo, J. C. Fabris, J. A. S. Lima and W. Zimdahl