Studying the EPRL spinfoam self-energy
General Relativity and Quantum Cosmology
2023-01-27 v2 High Energy Physics - Theory
Computational Physics
Abstract
I present some recent progresses in the study of the EPRL self-energy amplitude. New numerical methods allow to analyze how the divergence scales, for which previous works provided very different lower and upper bounds. I show the role that the Immirzi parameter plays in the asymptotic behavior, and I discuss the dynamical expectation value of the dihedral angle boundary observable.
Cite
@article{arxiv.2112.08528,
title = {Studying the EPRL spinfoam self-energy},
author = {Pietropaolo Frisoni},
journal= {arXiv preprint arXiv:2112.08528},
year = {2023}
}
Comments
19 pages, contribution to the Proceedings of the 16th Marcel Grossmann Meeting (MG16 - July 2021)