Speaker
Dr
Emilio Bellini
(INFN Trieste)
Description
I will start by overviewing the main motivations to test gravity at cosmological scales. In particular, I shall focus on current cosmological constraints and the use of dark energy and alternative theories of gravity to alleviate cosmological tensions. Then, I will describe what are the main methods and tools -- including the Einstein-Boltzmann solver hi_class -- used to reach the precision needed by the next generation of surveys. I shall concentrate on their caveats, missing features and improvements required to get believable results. Finally, I will outline the road ahead and future perspectives for cosmological tests of gravity.
