Studying the EPRL spinfoam self-energy
arXiv:2112.08528 · doi:10.1142/9789811269776_0336
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.
arXiv comment19 pages, contribution to the Proceedings of the 16th Marcel Grossmann Meeting (MG16 - July 2021)
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