Effective action for EPRL/FK spin foam models
General Relativity and Quantum Cosmology
2013-01-15 v2 High Energy Physics - Theory
Mathematical Physics
math.MP
Abstract
We show that a natural modification of the EPRL/FK vertex amplitude gives a finite spin foam model whose effective action gives the Einstein-Hilbert action in the limit of large spins and arbitrarily fine spacetime triangulations. The first-order quantum corrections can be easily computed and we show how to calculate the higher-order corrections.
Cite
@article{arxiv.1110.6114,
title = {Effective action for EPRL/FK spin foam models},
author = {Aleksandar Mikovic and Marko Vojinovic},
journal= {arXiv preprint arXiv:1110.6114},
year = {2013}
}
Comments
v2: some changes in text, new references added; 4 pages, proceedings of Loops 11 conference, Madrid; to appear in Journal of Physics: Conference Series (JPCS)