Dark-energy equation of state: how far can we go from \Lambda?
Astrophysics
2009-11-11 v1
Abstract
The equation of state of dark energy is investigated to determine how much it may deviate from the equation of state of the cosmological constant (CC). Two aspects of the problem are studied: the "expansion" around the vacuum equation of state and the problem of the crossing of the cosmological constant boundary.
Cite
@article{arxiv.astro-ph/0609780,
title = {Dark-energy equation of state: how far can we go from \Lambda?},
author = {Hrvoje Stefancic},
journal= {arXiv preprint arXiv:astro-ph/0609780},
year = {2009}
}
Comments
7 pages, 3 plots, talk given at the DSU2006, International Workshop on the Dark Side of the Universe, Madrid, Spain, 20-24 Jun 2006