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- Renormalizing TGFTs: a 3d example on SU(2)

I will recall the

main motivations for considering spin foam models in their Group Field Theory

(GFT) versions, which are quantum field theories defined on group manifolds. As

for any other quantum field theory, a fully consistent definition of the latter

must involve renormalization. I will briefly review a specific class of GFTs,

called tensorial, for which progress in this direction has recently been possible.

A new just-renormalizable model, in three dimensions and on the SU(2) group,

will be presented. Interestingly, it includes the geometric constraint of the

Boulatov model, and might as such be related to Euclidean quantum gravity in

three dimensions. Furthermore, this opens the way to a similar analysis of

current 4d gravity spin foam models.

Collection/Series:

Event Type:

Seminar

Scientific Area(s):

Speaker(s):

Event Date:

Thursday, December 6, 2012 - 14:30 to 16:00

Location:

Time Room

©2012 Perimeter Institute for Theoretical Physics