Comments on Background Independence and Gauge Redundancies
General Relativity and Quantum Cosmology
2010-03-03 v2
Abstract
We describe the definition and the role background independence and the closely related notion of diffeomorphism invariance play in modern string theory. These important concepts are transformed by a new understanding of gauge redundancies and their implementation in non-perturbative quantum field theory and quantum gravity. This new understanding also suggests a new role for the so-called background-independent approaches to directly quantize the gravitational field. This article is intended for a general audience, and is based on a plenary talk given in the Loops 2007 conference in Morelia, Mexico.
Cite
@article{arxiv.0809.3962,
title = {Comments on Background Independence and Gauge Redundancies},
author = {Moshe Rozali},
journal= {arXiv preprint arXiv:0809.3962},
year = {2010}
}
Comments
8 pages, 1 figure, to appear in Adv. Sci. Lett