Speaker
Prof.
Valerio Faraoni
(Bishop's University)
Description
Scalar-tensor and f(R) gravity can be described as general relativity plus an effective imperfect fluid corresponding to the scalar field degree of freedom of these 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 theory to Einstein gravity. The case of a null dust effective fluid is briefly discussed.
Primary authors
Prof.
Valerio Faraoni
(Bishop's University)
Prof.
Valerio Faraoni