Thick Brane Worlds and Their Stability

Details Thick Brane Worlds and Their Stability Thick Brane Worlds and Their Stability

2001-07-04

arxiv.org/abs/hep-th/0107025v4

Phys.Rev.D65:064014,2002

Physics

High Energy Physics

High Energy Physics - Theory

23 pages, 8figures

Scientific paper

10.1103/PhysRevD.65.064014

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.

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