Parametrizations of the Dark Energy Density and Scalar Potentials
Astrophysics
2008-11-26 v3 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We develop a theoretical method of constructing the scalar (quintessence or phantom) potential directly from the dimensionless dark energy function X(z), the dark energy density in units of its present value. We apply our method to two parametrizations of the dark energy density, the quiessence-Lambda ansatz and the generalized Chaplygin gas model, and discuss some features of the constructed potentials.
Cite
@article{arxiv.astro-ph/0603109,
title = {Parametrizations of the Dark Energy Density and Scalar Potentials},
author = {Zong-Kuan Guo and Nobuyoshi Ohta and Yuan-Zhong Zhang},
journal= {arXiv preprint arXiv:astro-ph/0603109},
year = {2008}
}
Comments
8 pages, 2 figures, ws-mpla.cls, Accepted for publication in Mod. Phys. Lett. A