Speaker
Prado Martín-Moruno
Description
As a case of potential interest for the dark sector, in this talk a scalar field action that is invariant only under transverse diffeomorphism will be considered. In the first place, some gravitational properties of this minimally coupled field will be discussed in the kinetic and potential domination regimes. Then, the idea of restoring the full diffeomorphism invariance by the introduction of additional fields will be explored. The reformulation with the full symmetry allows one to analyze the gravitational properties of the theory beyond those regimes.
Primary authors
Antonio L. Maroto
Darío Jaramillo-Garrido
Prado Martín-Moruno
