2008•Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fieldsOpen access

Induced gravity on intersecting brane worlds. II. Cosmology

Olindo Corradini, K. Koyama, Gianmassimo Tasinato

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Abstract

We explore cosmology of intersecting brane worlds 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.

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Key concepts: Cosmology, Brane, Physics, Theoretical physics, Induced gravity, Brane cosmology, Classical mechanics, Astronomy