Cosmological Dynamics of Cuscuta-Galileon Gravity

Understand

We study cosmological dynamics of the cuscuta-galileon gravity with a potential term by using the dynamical system approach.

• This model is galileon generalization of the cuscuton gravity where we add a potential term to the theory in order to obtain the radiation and matter dominated eras.
• The exponential potential can provide the sequence of the thermal history of the Universe correctly, i.e.
• starting from radiation dominance, passing through matter dominant era, and then approaching de Sitter expansion stage.