Perturbative Noncommutative Quantum Gravity

Details Perturbative Noncommutative Quantum Gravity Perturbative Noncommutative Quantum Gravity

2000-08-10

arxiv.org/abs/hep-th/0008089v2

Phys.Lett. B493 (2000) 142-148

Physics

High Energy Physics

High Energy Physics - Theory

11 pages LaTex. No figures. Changes to text. To be published in Physics Letters B

Scientific paper

10.1016/S0370-2693(00)01139-4

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.

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