Gauge invariant cosmological perturbation theory for braneworlds
High Energy Physics - Theory
2007-05-23 v1 Astrophysics
General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
We derive the gauge invariant perturbation equations for a 5-dimensional bulk spacetime in the presence of a brane. The equations are derived in full generality, without specifying a particular energy content of the bulk or the brane. We do not assume Z_2 symmetry, and show that the degree of freedom associated with brane motion plays a crucial role. Our formalism may also be used in the Z_2 symmetric case where it simplifies considerably.
Keywords
Cite
@article{arxiv.hep-th/0205220,
title = {Gauge invariant cosmological perturbation theory for braneworlds},
author = {Alain Riazuelo and Filippo Vernizzi and Danièle Steer and Ruth Durrer},
journal= {arXiv preprint arXiv:hep-th/0205220},
year = {2007}
}
Comments
73 pages, 11 figures, submitted to PRD