Speaker
Mr
Simone Peirone
(Leiden University)
Description
In my talk, I will present the impact of general, model independent conditions of theoretical stability and cosmological viability on the analysis of scalar-tensor theories with cosmological data. These conditions account for the avoidance of ghost and gradient instabilities as well as exponential growth of the scalar perturbations in the Dark Energy sector.
As an example, I will show the role of such conditions in the computation of emblematic Large Scale Structure observables and what we can learn from them in order to efficiently constrain Dark Energy and Modified Gravity against data.
Primary author
Mr
Simone Peirone
(Leiden University)
Co-author
Alessandra Silvestri
(Leiden University)
