Perturbative Noncommutative Quantum Gravity
High Energy Physics - Theory
2009-10-31 v2 General Relativity and Quantum Cosmology
Abstract
We study perturbative noncommutative quantum gravity by expanding the gravitational field about a fixed classical background. A calculation of the one loop gravitational self-energy graph reveals that only the non-planar graviton loops are damped by oscillating internal momentum dependent factors. The noncommutative quantum gravity perturbation theory is not renormalizable beyond one loop for matter-free gravity and all loops for matter interactions. Comments are made about the nonlocal gravitational interactions produced by the noncommutative spacetime geometry.
Cite
@article{arxiv.hep-th/0008089,
title = {Perturbative Noncommutative Quantum Gravity},
author = {J. W. Moffat},
journal= {arXiv preprint arXiv:hep-th/0008089},
year = {2009}
}
Comments
11 pages LaTex. No figures. Changes to text. To be published in Physics Letters B