Instability of the Time Dependent Horava-Witten Model
High Energy Physics - Theory
2008-11-26 v2 General Relativity and Quantum Cosmology
Abstract
We consider scalar perturbations in the time-dependent Ho\u{r}ava-Witten Model in order to probe its stability. We show that during the non-singular epoque the model evolves without instabilities until it encounters the curvature singularity where a big crunch is supposed to occur. We compute the frequencies of the scalar field oscillation during the stable period and show how the oscillations can be used to prove the presence of such a singularity.
Cite
@article{arxiv.0712.2155,
title = {Instability of the Time Dependent Horava-Witten Model},
author = {B. Cuadros-Melgar and C. E. Pellicer},
journal= {arXiv preprint arXiv:0712.2155},
year = {2008}
}
Comments
12 pages, 4 figures. References added. Some comments clarified. Accepted in Phys. Rev. D