A field-theoretic approach to Spin Foam models in Quantum Gravity

TL;DR

This paper introduces Group Field Theory models in quantum gravity, explaining their connection to discretized BF models, deriving Feynman rules, and calculating quantum corrections in the coherent states basis.

Contribution

It provides an accessible introduction to GFT models, linking them to BF models and detailing the derivation of Feynman rules and quantum corrections.

Findings

Established the relationship between GFT and BF models

Derived Feynman rules for GFT

Computed quantum corrections in coherent states basis

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.