Emergence of gravity from spinfoams
General Relativity and Quantum Cosmology
2013-04-30 v1 High Energy Physics - Theory
Abstract
We find a nontrivial regime of spinfoam quantum gravity that reproduces classical Einstein equations. This is the double scaling limit of small Immirzi parameter (gamma), large spins (j) with physical area (gamma times j) constant. In addition to quantum corrections in the Planck constant, we find new corrections in the Immirzi parameter due to the quantum discreteness of spacetime. The result is a strong evidence that the spinfoam covariant quantization of general relativity possesses the correct classical limit.
Keywords
Cite
@article{arxiv.1108.2258,
title = {Emergence of gravity from spinfoams},
author = {Elena Magliaro and Claudio Perini},
journal= {arXiv preprint arXiv:1108.2258},
year = {2013}
}
Comments
9 pages, shorter version of "Regge gravity from spinfoams"