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 two-complex 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 space-time 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 BF-like theory with
appropriately chosen symmetry group.
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Talk: |
Transparencies, Recorded Talk
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