Wormholes in de Sitter branes
General Relativity and Quantum Cosmology
2012-08-06 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
In this work we present a class of geometries which describes wormholes in a Randall-Sundrum brane model, focusing on de Sitter backgrounds. Maximal extensions of the solutions are constructed and their causal structures are discussed. A perturbative analysis is developed, where matter and gravitational perturbations are studied. Analytical results for the quasinormal spectra are obtained and an extensive numerical survey is conducted. Our results indicate that the wormhole geometries presented are stable.
Keywords
Cite
@article{arxiv.1204.1291,
title = {Wormholes in de Sitter branes},
author = {C. Molina and J. C. S. Neves},
journal= {arXiv preprint arXiv:1204.1291},
year = {2012}
}
Comments
10 pages, 7 figures