Vacuum Energy: "If Not Now, Then When?"
High Energy Physics - Phenomenology
2009-10-31 v1
Abstract
For a flat universe presently dominated by static or dynamic vacuum energy, cosmological constant (LCDM) or quintessence (QCDM), we calculate the asymptotic collapsed mass fraction as function of the present ratio of smooth energy to matter energy . Identifying these collapsed fractions as anthropic probabilities, we find the observed present ratio to be likely in LCDM, but most likely in QCDM.
Cite
@article{arxiv.hep-ph/0003164,
title = {Vacuum Energy: "If Not Now, Then When?"},
author = {Sidney A. Bludman},
journal= {arXiv preprint arXiv:hep-ph/0003164},
year = {2009}
}
Comments
revision, extension of astro-ph/0002204, with one extra figure