Effective action for EPRL/FK spin foam models
Abstract
We show that a natural modification of the EPRL/FK vertex amplitude gives a finite spin foam model whose effective action gives the EinsteinHilbert action in the limit of large spins and arbitrarily fine spacetime triangulations. The firstorder quantum corrections can be easily computed and we show how to calculate the higherorder corrections.
 Publication:

Journal of Physics Conference Series
 Pub Date:
 May 2012
 DOI:
 10.1088/17426596/360/1/012049
 arXiv:
 arXiv:1110.6114
 Bibcode:
 2012JPhCS.360a2049M
 Keywords:

 General Relativity and Quantum Cosmology;
 High Energy Physics  Theory;
 Mathematical Physics
 EPrint:
 v2: some changes in text, new references added