3 papers
astro-ph.CO2025
Hierarchical summaries for primordial non-Gaussianities
M. S. Cagliari, A. Bairagi, B. Wandelt
The advent of Stage IV galaxy redshift surveys such as DESI and Euclid marks the beginning of an era of precision cosmology, with one key objective being the detection of primordia…
astro-ph.CO2025
PatchNet: A hierarchical approach for neural field-level inference from Quijote Simulations
Anirban Bairagi, Benjamin Wandelt
\textit{What is the cosmological information content of a cubic Gigaparsec of dark matter? } Extracting cosmological information from the non-linear matter distribution has high po…
astro-ph.CO2025
How many simulations do we need for simulation-based inference in cosmology?
Anirban Bairagi, Benjamin Wandelt, Francisco Villaescusa-Navarro
How many simulations do we need to train machine learning methods to extract information available from summary statistics of the cosmological density field? Neural methods have sh…