Speaker
Description
We live in the era of big data cosmology, as many large scale structure surveys like DESI, Euclid and LSST are happening this decade. These datasets are mapping the Universe with unprecedented sensitivity and depth, and will allow us to better understand the nature of dark energy. However, they are also useful to trace the physics of the primordial Universe, and in particular, we can determine the nature of cosmic inflation by measuring the primordial non-Gaussianity parameter, as it has an imprint on the observed matter distribution. In this talk, I will present two recent studies about primordial non-Gaussianity from DESI Luminous Red Galaxies and Gaia quasars, and will comment about the next steps to improve these measurements with upcoming datasets.