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Explore how large-scale cosmic structures can be used to constrain local primordial non-Gaussianities in this 16-minute conference talk by Marina Cagliari from the Galileo Galilei Institute. Delve into the theoretical framework connecting primordial density fluctuations to the formation and distribution of cosmic structures we observe today. Learn about the statistical methods and observational techniques used to detect deviations from Gaussian initial conditions in the early universe. Discover how galaxy surveys, galaxy clustering measurements, and other large-scale structure observations provide powerful tools for testing inflationary models and constraining the parameter fNL that characterizes local-type primordial non-Gaussianity. Understand the current observational limits on primordial non-Gaussianities and their implications for our understanding of cosmic inflation and the early universe's physics.
