Flowing in Group Field Theory Space: a Review

Sylvain Carrozza

Symmetry, integrability and geometry: methods and applications, Tome 12 (2016)

Résumé

We provide a non-technical overview of recent extensions of renormalization methods and techniques to Group Field Theories (GFTs), a class of combinatorially non-local quantum field theories which generalize matrix models to dimension $d \geq 3$. More precisely, we focus on GFTs with so-called closure constraint, which are closely related to lattice gauge theories and quantum gravity spin foam models. With the help of recent tensor model tools, a rich landscape of renormalizable theories has been unravelled. We review our current understanding of their renormalization group flows, at both perturbative and non-perturbative levels.

Détail

Keywords: group field theory; quantum gravity; quantum field theory; renormalization.

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