Speaker: Valerio Faraoni (Bishop’s University, Sherbrooke, Canada)
Title: Imperfect fluid description of scalar-tensor gravity and an application to the general relativity limit
Scalar-tensor gravity can be described as general relativity plus an effective imperfect fluid corresponding to the scalar field degree of freedom of this class of theories. A symmetry of electrovacuum Brans-Dicke gravity translates into a symmetry of the corresponding effective fluid. We present the formalism and an application to an anomaly in the limit of Brans-Dicke to Einstein gravity, and outline a possible application to the thermodynamics of spacetime.
Room: ZOOM videoconference (contact firstname.lastname@example.org for URL)