Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-06-03
Physics
High Energy Physics
High Energy Physics - Theory
Latex, 13 pages, 4 figures. Comments and references updated
Scientific paper
We propose to include gravity in quantum field theory non-perturbatively by modifying the propagators so that each virtual particle in a Feynman graph move in the space-time determined by the momenta of the other particles in the same graph. By making additional working assumptions, we are able to put this idea at work and obtain a modified Feynman propagator for the massless neutral scalar field which shows a suppression at high momentum strong enough to entail finite results to all loop orders for processes involving at least two virtual particles.
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