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Studying the EPRL spinfoam self-energy
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gr-qchep-thphysics.comp-ph
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eprlself-energyallowamplitudeanalyzeangleasymptoticbehavior
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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.
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