A field-theoretic approach to Spin Foam models in Quantum Gravity
arXiv:1103.4172
Abstract
We present an introduction to Group Field Theory models, motivating them on the basis of their relationship with discretized BF models of gravity. We derive the Feynmann rules and compute quantum corrections in the coherent states basis.
16 pages, 3 figures. Proceedings of the Workshop on Non Commutative Field Theory and Gravity, September 8-12, 2010 Corfu Greece