Thick Brane Worlds and Their Stability
High Energy Physics - Theory
2008-11-26 v4 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Three types of thick branes, i.e., Poincar\'{e}, de Sitter and Anti-de Sitter brane are considered. They are realized as the non-singular solutions of the Einstein equations with the non-trivial dilatons and the potentials. The scalar perturbations of these systems are also investigated. We find that the effective potentials of the master equations of the scalar perturbations are positive definite and consequently these systems are stable under the small perturbations.
Keywords
Cite
@article{arxiv.hep-th/0107025,
title = {Thick Brane Worlds and Their Stability},
author = {Shinpei Kobayashi and Kazuya Koyama and Jiro Soda},
journal= {arXiv preprint arXiv:hep-th/0107025},
year = {2008}
}
Comments
23 pages, 8figures