Finite One-Loop Corrections and Perturbative Gauge Invariance in Quantum Gravity Coupled to Photon Fields
High Energy Physics - Theory
2007-05-23 v2
Abstract
One-loop calculations in quantum gravity coupled to U(1)-Abelian fields (photon fields) are ultraviolet finite and cutoff-free in the framework of causal perturbation theory. We compute the photon loop correction to the graviton propagator and the photon self-energy in second order perturbation theory. Perturbative gauge invariance to second order is shown and generates the gravitational Slavnov-Ward identities.
Keywords
Cite
@article{arxiv.hep-th/9912114,
title = {Finite One-Loop Corrections and Perturbative Gauge Invariance in Quantum Gravity Coupled to Photon Fields},
author = {Nicola Grillo},
journal= {arXiv preprint arXiv:hep-th/9912114},
year = {2007}
}
Comments
22 pages, latex, no figures, some typos corrected, introduction enlarged