Instability of 1-loop superstring cosmology
General Relativity and Quantum Cosmology
2009-10-31 v2 High Energy Physics - Theory
Abstract
A stability analysis is made in the context of the previously discovered non-singular cosmological solution from 1-loop corrected superstring effective action. We found that this solution has an instability in graviton mode, which is shown to have a close relation to the avoidance of initial singularity via energy condition. We also estimate the condition for the breakdown of the background solution due to the overdominance of the graviton.
Cite
@article{arxiv.gr-qc/9802033,
title = {Instability of 1-loop superstring cosmology},
author = {Shinsuke Kawai and Masa-aki Sakagami and Jiro Soda},
journal= {arXiv preprint arXiv:gr-qc/9802033},
year = {2009}
}
Comments
10 pages, 6 figures, revtex