1999•arXiv (Cornell University)Open access
Quantum gravity from perturbative gauge invariance
G. Scharf, Mark Wellmann
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Abstract
Spin-2 gauge theories are constructed without any classical input from general relativity by means of perturbative gauge invariance. We start from a general ansatz for the couplings and derive constraints from first order gauge invariance. We find 15 conditions which are necessary for any spin-2 gauge theory. One solution is quantum gravity, but there are others.