Stable compactification and gravitational excitons from extra dimensions
General Relativity and Quantum Cosmology
2011-04-15 v1 Astrophysics
Abstract
We study inhomogeneous multidimensional cosmological models with a higher dimensional space-time manifold under dimensional reduction. Stability due to different types of effective potentials is analyzed for specific configurations of internal spaces. Necessary restrictions on the parameters of the models are found and masses of gravitational excitons (small inhomogeneous excitations of the scale factors of the internal spaces near minima of effective potentials) are calculated.
Cite
@article{arxiv.gr-qc/9710086,
title = {Stable compactification and gravitational excitons from extra dimensions},
author = {U. Guenther and A. Zhuk},
journal= {arXiv preprint arXiv:gr-qc/9710086},
year = {2011}
}
Comments
42 pages, Latex. Extended version of a lecture given at the conference "Modern Modified Theories of Gravitation and Cosmology", Ben Gurion University, Beer Sheva, Israel, June 29-30 1997