Induced gravity on intersecting brane-worlds Part II: Cosmology
High Energy Physics - Theory
2008-12-18 v2 Astrophysics
General Relativity and Quantum Cosmology
Abstract
We explore cosmology of intersecting braneworlds with induced gravity on the branes. We find the cosmological equations that control the evolution of a moving codimension one brane and a codimension two brane that sits at the intersection. We study the Friedmann equation at the intersection, finding new contributions from the six dimensional bulk. These higher dimensional contributions allow us to find new examples of self-accelerating configurations for the codimension two brane at the intersection and we discuss their features.
Cite
@article{arxiv.0803.1850,
title = {Induced gravity on intersecting brane-worlds Part II: Cosmology},
author = {Olindo Corradini and Kazuya Koyama and Gianmassimo Tasinato},
journal= {arXiv preprint arXiv:0803.1850},
year = {2008}
}
Comments
21 pages, some mistakes in the identification of the higher codimensional singular structure corrected. Main results unchanged