Speaker
Prof.
Kourosh Nozari
(University of Mazandaran)
Description
Motivated by the ultraviolet deformation of the Hamiltonian systems
in loop quantum cosmology, we investigate an infrared modification
of the spatially flat FRW geometry. While the energy density and
Hubble parameter get maximized in loop quantum cosmology, these
quantities take the minimum values in our setup. Considering only
a massless scalar field in matter dominated era in this setup
naturally leads to a dynamical dark energy model and the dark
component originates purely from infrared effects. The dynamical system
analysis of the model also shows the viability of this model so
that the universe starts from a matter dominated era, smoothly
enters into a quintessence regime and then transits to a phantom
era followed by a big rip singularity.
Primary author
Prof.
Kourosh Nozari
(University of Mazandaran)
