The Cosmological Constant is Back
Astrophysics
2014-10-13 v1 High Energy Physics - Phenomenology
Abstract
A diverse set of observations now compellingly suggest that Universe possesses a nonzero cosmological constant. In the context of quantum-field theory a cosmological constant corresponds to the energy density of the vacuum, and the wanted value for the cosmological constant corresponds to a very tiny vacuum energy density. We discuss future observational tests for a cosmological constant as well as the fundamental theoretical challenges---and opportunities---that this poses for particle physics and for extending our understanding of the evolution of the Universe back to the earliest moments.
Cite
@article{arxiv.astro-ph/9504003,
title = {The Cosmological Constant is Back},
author = {Lawrence M. Krauss and Michael S. Turner},
journal= {arXiv preprint arXiv:astro-ph/9504003},
year = {2014}
}
Comments
latex, 8 pages plus one ps figure available as separate compressed uuencoded file