Matrix Models, Emergent Gravity, and Gauge Theory
Abstract
Matrix models of Yang-Mills type induce an effective gravity theory on 4-dimensional branes, which are considered as models for dynamical space-time. We review recent progress in the understanding of this emergent gravity. The metric is not fundamental but arises effectively in the semi-classical limit, along with nonabelian gauge fields. This leads to a mechanism for protecting certain geometries from corrections due to the vacuum energy.
Cite
@article{arxiv.0903.1015,
title = {Matrix Models, Emergent Gravity, and Gauge Theory},
author = {Harold Steinacker},
journal= {arXiv preprint arXiv:0903.1015},
year = {2009}
}
Comments
8 pages. Based on invited talks given at the Conferences "Quantum Spacetime and Noncommutative Geometry", Rome, 2008 and at "Workshop on quantum gravity and nocommutative geometry", Lisbon, 2008 and at "Emergent Gravity", Boston, 2008 and at DICE2008, Italy, 2008 and at "QG2 2008 Quantum Geometry and Quantum Gravity", Nottingham, 2008