Cosmological Information in Perturbative Forward Modeling
Speaker
Date
Time
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Abstract
Field-level based inference of cosmological parameters is a promising alternative to the usual approach that relies on measurements of n-point correlation functions. I will discuss some advantages and limitations of this method in the context of perturbative forward modeling, where the theoretical model for the observed galaxy density field is computed using perturbation theory. I will review some recent contradictory results and suggest possible explanations that can have important implications for the field-level analysis.
Biography
Marko Simonovic is a professor at the University of Florence in Italy. He a leading theoretical cosmologist who has made important contributions to our understanding of the large-scale structure of the universe and the development of new tools to extract fundamental physics from galaxy surveys. He won the 2024 New Horizons in Physics Prize.