Séminaire de Physique ThéoriqueAsymptotic analysis of four-dimensional spinfoam models
Winston Fairbairn (Nottingham University)
Thursday 19 February 2009 14:00 - Tours - Salle 1180 (Bât E2)
I will report recent results on the semi-classical behavior of spinfoam models of four-dimensional quantum gravity. I will start by reviewing the general spinfoam approach to the quantization of general relativity in four dimensions, before introducing the EPRL model of quantum gravity with finite Immirzi parameter. Then, I will derive an asymptotic formula showing how one recovers Regge calculus from the semi-classical regime of the EPRL spinfoam model.