Induced gravity on intersecting brane-worlds Part II: Cosmology
Olindo Corradini, Kazuya Koyama, Gianmassimo Tasinato
TL;DR
This paper investigates the cosmological dynamics of intersecting brane-worlds with induced gravity, deriving new equations and discovering self-accelerating solutions influenced by six-dimensional bulk effects.
Contribution
It introduces new cosmological equations for intersecting branes with induced gravity and identifies novel self-accelerating configurations due to higher-dimensional contributions.
Findings
Derived cosmological equations for intersecting branes
Identified new self-accelerating solutions
Highlighted effects of six-dimensional bulk on brane 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.
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