Summary
In this paper we show that the usual vierbein formalism for the gravitational field, generalized to aN-component vector field, gives a quantum theory which is finite and unitary in the framework of the 1/N expansion. The relevance of such a procedure is briefly discussed.
Riassunto
In questo articolo mostriamo che la seconda quantizzazione della teoria gravitazionale di Einstein scritta in formalismo del primo ordine basato su una formaleN-bein invece dell’usuale 4-bein, dà un «modello» di gravità quantistica che è finito ed unitario nell’ambito perturbativo di un’espansione in 1/N.
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Martellini, M. On the 1/N expansion for a model of quantum gravity: toward a finite theory. Nuov Cim B 64, 20–32 (1981). https://doi.org/10.1007/BF02721291
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DOI: https://doi.org/10.1007/BF02721291