22–26 Jul 2024
Europe/Lisbon timezone

Field interactions from broken diffeomorphisms

24 Jul 2024, 15:15
15m
Auditorium E10B

Auditorium E10B

Department of Physics (University of Coimbra)

Speaker

Diego Tessainer Bonet (Universidad Complutense de Madrid)

Description

In this talk we explore the possibility of describing an interacting dark sector as result of breaking the invariance under diffeomorphism of the matter action. Particularly, we consider two scalar fields with different non-canonical minimal couplings to gravity. We consider the potential and kinetic domination regimes for each field and analyze the resulting models. Then, we focus on cases describing dark matter-dark energy interaction and compare its predictions to observations.

Authors

ANTONIO LOPEZ MAROTO Diego Tessainer Bonet (Universidad Complutense de Madrid) Prado Martín-Moruno (Complutense University of Madrid)

Presentation materials