Non-linear Equation of State: Dark Energy Parametrization, Dynamics and Singularities |
Credits |
Outline |
Standard cosmology |
Standard FRW models in GR |
Main dynamical components |
Observational Constraints |
Singularities in GR |
Motivations for a non-linear EoS |
"Isotropy and singularities:" |
Motivations for a quadratic EoS |
Energy cons. & effective rL |
Energy cons. & effective rL |
Energy cons. & effective rL |
Energy cons. & effective rL |
RW dynamics |
P=r(a + e r/rc) |
P=r(a + r/rc) |
P=r(a - r/rc) |
Affine EoS: P=Po+ar |
P=Po+ar |
Full quadratic EoS |
Anisotropic dynamics and singularities |
Bianchi I dynamics |
Bianchi V dynamics |
The isotropic past attractor IS |
Perturbations of IS |
Perturbations of IS |
Perturbations of IS |
Work in progress |
Flat model, UDM with Affine EoS |
Likelihood: Age of the Universe |
Likelihood: Supernovae |
Likelihood: Baryon oscillations |
Likelihood: CMB first peak |
Likelihood: Total |
Scalar field for affine UDM |
Potential |
Summary |
Some open questions |