On Perturbative Gravity and Gauge Theory
Abstract
We review some applications of tree-level (classical) relations between gravity and gauge theory that follow from string theory. Together with -dimensional unitarity, these relations can be used to perturbatively quantize gravity theories, i.e. they contain the necessary information for obtaining loop contributions. We also review recent applications of these ideas showing that N=1 D=11 supergravity diverges, and review arguments that N=8 D=4 supergravity is less divergent than previously thought, though it does appear to diverge at five loops. Finally, we describe field variables for the Einstein-Hilbert Lagrangian that help clarify the perturbative relationship between gravity and gauge theory.
Cite
@article{arxiv.hep-th/0002078,
title = {On Perturbative Gravity and Gauge Theory},
author = {Z. Bern and L. Dixon and D. C. Dunbar and A. K. Grant and M. Perelstein and J. S. Rozowsky},
journal= {arXiv preprint arXiv:hep-th/0002078},
year = {2010}
}
Comments
Talk presented at Third Meeting on Constrained Dynamics and Quantum Gravity, Villasimius (Sardinia, Italy) September 13-17, 1999 and at the Workshop on Light-Cone QCD and Nonperturbative Hadron Physics, University of Adelaide (Australia) December 13-22, 1999. Latex, 9 pages