Late time behavior of cosmological perturbations in a single brane model
Astrophysics
2009-11-10 v2 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Abstract
We present solutions for the late time evolution of cosmological tensor and scalar perturbations in a single-Randall-Sundrum brane world model. Assuming that the bulk is anti-de Sitter spacetime, the solutions for cosmological perturbations are derived by summing mode functions in Poincar\'e coordinate. The junction conditions imposed at the moving brane are solved numerically. The recovery of 4-dimensional Einstein gravity at late times is shown by solving the 5-dimensional perturbations throughout the infinite bulk. We also comment on several possibilities for having deviations from 4-dimensional Einstein gravity.
Cite
@article{arxiv.astro-ph/0407263,
title = {Late time behavior of cosmological perturbations in a single brane model},
author = {Kazuya Koyama},
journal= {arXiv preprint arXiv:astro-ph/0407263},
year = {2009}
}
Comments
24 pages, 11 figures, discussions concerning a numerical accuracy added, final version to appear in JCAP