Quintessence and the Separation of CMB Peaks
Astrophysics
2009-10-31 v2 High Energy Physics - Phenomenology
Abstract
We propose that it should be possible to use the CMB to discriminate between dark energy models with different equations of state, including distinguishing a cosmological constant from many models of quintessence. The separation of peaks in the CMB anisotropies can be parametrised by three quantities: the amount of quintessence today, the amount at last scattering, and the averaged equation of state of quintessence. In particular, we show that the CMB peaks can be used to measure the amount of dark energy present before last scattering.
Cite
@article{arxiv.astro-ph/0012139,
title = {Quintessence and the Separation of CMB Peaks},
author = {Michael Doran and Matthew Lilley and Jan Schwindt and Christof Wetterich},
journal= {arXiv preprint arXiv:astro-ph/0012139},
year = {2009}
}
Comments
Replaced with version to appear in Astrophysical Journal