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Lecture abstract



Time:   9. May 2011
Place:   Quantum Gravity group, Centre de Physique Théorique de Luminy
Title:   Recent research on graviton propagator in spin-foam models
Abstract:
The plan of the talk is to present and discuss some recent results and issues regarding the asymptotics of the flat-space boundary wavefunction for the graviton propagator, within the EPRL/FK spinfoam model. We shall also present a proposal to modify the vertex amplitude of the model in order to avoid those issues.