A large N expansion for gravity

Canfora, F.

Abstract

A first step in the analysis of the renormalizability of gravity at Large N is carried on. Suitable resummations of planar diagrams give rise to a theory in which there is only a finite number of primitive superficially divergent Feynman diagrams. The mechanism is similar to the the one which makes renormalizable the 3D Gross-Neveu model at large N. Some potential problems in fulfilling the Slavnov-Taylor and the Zinn-Justin equations are also pointed out.

Más información

Título de la Revista: NUCLEAR PHYSICS B
Volumen: 731
Número: 3
Editorial: Elsevier
Fecha de publicación: 2005
Página de inicio: 389
Página final: 405
DOI:

10.1016/j.nuclphysb.2005.10.022