Jul 5 – 10, 2021
Europe/Rome timezone

Causality in Spinfoams

Jul 5, 2021, 4:30 PM
25m
Talk in the parallel session Loop Quantum Gravity Loop Quantum Gravity

Speaker

Eugenio Bianchi (Penn State)

Description

Current Lorentzian Spinfoams are formulated in terms of a two-complex with spins on faces and intertwiners on edges. In this talk, I discuss how to add a causal structure on wedges. The EPRL model turns out to be given by a sum over these wedge-causal structures. I will show how this sum can be restricted to a single causal configuration and its relation to Engle's proper vertex. [Based on work in collaboration with Pierre Martin-Dussaud]

Primary author

Eugenio Bianchi (Penn State)

Presentation materials