Ponente
Lilia Anguelova
(INRNE, Bulgarian Academy of Sciences)
Descripción
Effective actions with higher curvature terms can have cosmological solutions exhibiting a transient phantom regime. I will discuss a generalization of multifield cosmology in the presence of a higher curvature term, namely the Gauss-Bonnet term. I will show that in this context there are novel features of the so called rapid turn regime, in which multifield models of cosmic acceleration (i.e. of inflation or dark energy) are phenomenologically distinct from single-scalar ones.
Autor primario
Lilia Anguelova
(INRNE, Bulgarian Academy of Sciences)
