Speaker
Raquel Santos
Description
In the context of studying Unimodular Gravity (UG), it is useful to consider a more general scalar-tensor theory obtained from the General Relativity (GR) lagrangian by the process of group averaging. Such theory inherits the diffeomorphism invariance of GR but has a tautological Weyl invariance. This theory can reduce both to GR and UG depending on the gauge fixing choice for the conformal symmetry. We use a toy model to study whether this "fake" symmetry is anomalous at the quantum level.
