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arXiv · 0806.0501

Gravitational renormalization of quantum field theory

Roberto Casadio
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Abstract

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 four-momenta of the other particles in the same graph. By making additional working assumptions, we are able to put this idea at work in a simplified context, and obtain a modified Feynman propagator for the massless neutral scalar field. Our expression 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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Roberto Casadio. 2008-06-03. Gravitational renormalization of quantum field theory. https://doi.org/10.1142/s0217751x12501862

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