Perturbative noncommutative quantum gravity
Aug, 2000Citations per year
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.- quantum gravity
- differential geometry: noncommutative
- field theory: action
- propagator
- perturbation theory: higher-order
- nonperturbative
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