Six Dimensional Topological Gravity and the Cosmological Constant Problem
High Energy Physics - Theory
2009-10-31 v3 High Energy Physics - Phenomenology
Abstract
We formulate a topological theory in six dimensions with gauge group SO(3,3) which reduces to gravity on a four dimensional defect if suitable boundary conditions are chosen. In such a framework we implement the reflection automorphism of SO(3,3) as a symmetry which forbids the appearance of a gravitational cosmological constant. Some temptative speculations are presented also for the possible inclusion of the matter contribution at a full quantum level.
Cite
@article{arxiv.hep-th/0004058,
title = {Six Dimensional Topological Gravity and the Cosmological Constant Problem},
author = {G. Bonelli and A. M. Boyarsky},
journal= {arXiv preprint arXiv:hep-th/0004058},
year = {2009}
}
Comments
11 pages, Latex, one figure; one reference added; final version to appear in PLB