Dark Energy May Probe String Theory
摘要
The problem of dark energy arises due to its self-gravitating properties. Therefore explaining vacuum energy may become a question for the realm of quantum gravity, that can be addressed within string theory context. In this talk I concentrate on a recent, string-inspired model, that relies on nonlinear physics of short-distance perturbation modes, for explaining dark energy without any fine-tuning. Dark energy can be observationally probed by its equation of state, w. Different models predict different types of equations of state and string-inspired ones have a time dependent w(z) as their unique signature. Exploring the link between dark energy and string theory may provide indirect evidence for the latter, by means of precision cosmology data.
引用
@article{arxiv.hep-th/0212153,
title = {Dark Energy May Probe String Theory},
author = {L. Mersini and M. Bastero-Gil},
journal= {arXiv preprint arXiv:hep-th/0212153},
year = {2007}
}
备注
11 pages, 2 figures, proceedings of the conference Sakharov3, Moscow, Jun 2002