Cosmological Constant and Axions in String Theory
High Energy Physics - Theory
2007-05-23 v1 Astrophysics
High Energy Physics - Phenomenology
Abstract
String theory axions appear to be promising candidates for explaining cosmological constant via quintessence. In this paper, we study conditions on the string compactifications under which axion quintessence can happen. For sufficiently large number of axions, cosmological constant can be accounted for as the potential energy of axions that have not yet relaxed to their minima. In compactifications that incorporate unified models of particle physics, the height of the axion potential can naturally fall close to the observed value of cosmological constant.
Cite
@article{arxiv.hep-th/0607086,
title = {Cosmological Constant and Axions in String Theory},
author = {Peter Svrcek},
journal= {arXiv preprint arXiv:hep-th/0607086},
year = {2007}
}
Comments
22 pages