Perturbative Noncommutative Quantum Gravity
arXiv:hep-th/0008089 · doi:10.1016/S0370-2693(00)01139-4
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.
11 pages LaTex. No figures. Changes to text. To be published in Physics Letters B
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