Corpus ID: 235186898

Normalizing flows for random fields in cosmology

@inproceedings{Rouhiainen2021NormalizingFF,
  title={Normalizing flows for random fields in cosmology},
  author={Adam Rouhiainen and U. Giri and Moritz Munchmeyer},
  year={2021}
}
Normalizing flows are a powerful tool to create flexible probability distributions with a wide range of potential applications in cosmology. Here we are studying normalizing flows which represent cosmological observables at field level, rather than at the level of summary statistics such as the power spectrum. We evaluate the performance of different normalizing flows for both density estimation and sampling of near-Gaussian random fields, and check the quality of samples with different… Expand

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