Particle scattering in loop quantum gravity

TL;DR

This paper introduces a new method for calculating n-point functions in background-independent quantum gravity, applying it to a finite loop/spinfoam model to advance understanding of quantum spacetime interactions.

Contribution

It develops a novel technique for n-point function computation in background-independent quantum gravity and demonstrates its application in a finite loop/spinfoam model.

Findings

Successful definition of n-point functions in background-independent setting

Implementation of the technique in a perturbatively-finite loop/spinfoam model

Potential for further exploration of quantum gravitational interactions

Abstract

We devise a technique for defining and computing n-point functions in the context of a background-independent gravitational quantum field theory. We construct a tentative implementation of this technique in a perturbatively-finite loop/spinfoam model.