Mar 5 – 9, 2018
Nordita, Stockholm
Europe/Stockholm timezone

Renormalization in symmetry-restricted spin foam models with curvature

Mar 8, 2018, 9:30 AM
1h
122:026 (Nordita, Stockholm)

122:026

Nordita, Stockholm

Speaker

Benjamin Bahr

Description

We study the renormalization group flow in the Euclidean EPRL-FK spin foam model for quantum gravity in a truncation. This extends previous results which were carried out in a hypercuboidal setting, where a non-trivial fixed point was found. In the extended setting presented in this talk, some local curvature excitations are permitted, and we find that the fixed point still exists, with similar properties. We discuss the implications, as well as the connection to restoration of broken diffeomorphism symmetry in this setting.

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