Cosmological constant vs. quintessence
High Energy Physics - Phenomenology
2014-11-17 v1
Abstract
There is some evidence that the Universe is presently undergoing accelerating expansion. This has restored some credit to the scenarios with a non-vanishing cosmological constant. From the point of view of a theory of fundamental interactions, one may argue that a dynamical component with negative pressure is easier to achieve. As an illustration, the quintessence scenario is described and its shortcomings are discussed in connection with the nagging ``cosmological constant problem''.
Keywords
Cite
@article{arxiv.hep-ph/0005037,
title = {Cosmological constant vs. quintessence},
author = {Pierre Binetruy},
journal= {arXiv preprint arXiv:hep-ph/0005037},
year = {2014}
}
Comments
28 pages, 2 figures, lectures at Les Houches summer school 'The early Universe" and Peyresq 4 meeting, July 1999