2021 CAP Virtual Congress / Congrès virtuel de l'ACP 2021

Scalar-tensor gravity as an imperfect fluid, with applications

7 Jun 2021, 11:55

3m

Underline Conference System

Oral (Non-Student) / Orale (non-étudiant(e)) Theoretical Physics / Physique théorique (DTP-DPT) M1-2 Classical and Quantum Gravity I (DTP) / Gravité classique et quantique I (DPT)

Speaker

Valerio Faraoni (Bishop's University)

Description

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 theory to Einstein gravity.

[Based on V. Faraoni & J. Côté, Phys. Rev. D 98, 084019 (2018); Phys. Rev. D 99, 064013 (2019)]