Renormalization of group field theories for quantum gravity: new scaling results and some suggestions

Autor:	Finocchiaro, Marco, Oriti, Daniele
Rok vydání:	2020
Předmět:	High Energy Physics - Theory General Relativity and Quantum Cosmology
Zdroj:	Frontiers in Physics, 8, 649 (2021)
Druh dokumentu:	Working Paper
DOI:	10.3389/fphy.2020.552354
Popis:	We discuss motivation and goals of renormalization analyses of group field theory models of simplicial 4d quantum gravity, and review briefly the status of this research area. We present some new computations of perturbative GFT (spin foam) amplitudes, concerning in particular the scaling behaviour of radiative corrections to N-point functions. Finally, we single out key open issues and suggest a number of research directions for further progress in this area. Comment: 29 pages, 19 figures/tables; v2: 32 pages, improved presentation on several points, some typos corrected, references added
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2004.07361 Zobrazit plný text záznamu View this record from Arxiv