Dec 15 – 16, 2022
Centre for Particle Theory, Durham
Europe/London timezone

Coupling metric-affine gravity to a Higgs-like scalar field

Dec 15, 2022, 2:50 PM
10m
Ph8 (zoom room 1) (Centre for Particle Theory, Durham)

Ph8 (zoom room 1)

Centre for Particle Theory, Durham

Department of Physics Durham University South Road Durham DH1 3LE
Gong show talk (5 mins) Gong Show Talks

Speaker

Claire Rigouzzo (King's College London)

Description

General relativity (GR) exists in different formulations. They are equivalent in pure gravity but generically lead to distinct predictions once matter is included. After a brief overview of various versions of GR, we focus on metric-affine gravity, which avoids any assumption about the vanishing of curvature, torsion, or nonmetricity. We use it to construct an action of a scalar field coupled nonminimally to gravity. It encompasses as special cases numerous previously studied models. Eliminating nonpropagating degrees of freedom, we derive an equivalent theory in the metric formulation of GR. Finally, we give a brief outlook of implications for Higgs inflation.

Type of presentation 5 minute talk
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Primary authors

Claire Rigouzzo (King's College London) Dr Sebastian Zell (EPFL)

Presentation materials