Imperfect fluid description of scalar-tensor gravity and an application to the GR limit

Abstract: 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.

astrophysicsgeneral relativity and quantum cosmologyinstrumentation and detectors

Audience: researchers in the topic

CENTRA Seminar

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portal.educast.fccn.pt/videos?c=6865