 Speaker:  Winston Fairbairn 
Title: 
Large N QCD and spinfoam models 
Abstract: 
A vacuum Feynman diagram of QCD in the large N approach
is known to form the dual to a triangulation (and/or quadrangulation)
of a two dimensional surface. In fact, such a twocomplex possesses an
additional structure provided by the coloring of its faces (loops)
by fundamental representations of the color group SU(N).
This remark turns a diagram of QCD into a two dimensional spinfoam
model imbedded in the spacetime of the field theory.
I will show how this assertion can be concretely implemented by defining
a spinfoam regularization of the path integral of a BFlike theory with
appropriately chosen symmetry group.

Talk: 
Transparencies, Recorded Talk

 