Orateur
Description
The Lyman-a forest traces large-scale structure at Mpc scales and below at high redshifts (2 < z < 4). The Lyman-a forest has provided pristine information about the expansion history of the Universe using BAO measurements. In this talk, I will talk about challenges and results on extracting more information from the Lyman-a forest. First, from a full-shape cosmological analysis and, second, by extracting higher-order information from the forest. I will present a first-principle modeling of the Lyman-a forest in the effective field theory of large-scale structure to go beyond information in the two-point correlation function. I will give an outlook on current and future challenges with the Lyman-a forest. In a nutshell, we can already now do Stage-V spectroscopy science with the Lyman-a forest.
