2.4k citations · 12.4k across the 74 of their papers we have counts for
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On the information content of the matter power spectrum
Julien Carron, Melody Wolk, István Szapudi
We discuss an analytical approximation for the matter power spectrum covariance matrix and its inverse on translinear scales, at . We proce…
Unveiling the cosmological information beyond linear scales: forecasts for sufficient statistics
M. Wolk, J. Carron, I. Szapudi
Beyond the linear regime, Fourier modes of cosmological random fields become correlated, and the power spectrum of density fluctuations contains only a fraction of the available co…
The impact of super-survey modes on cosmological constraints from cosmic shear fields
Julien Carron, István Szapudi
Owing to the mass-sheet degeneracy, cosmic shear maps do not probe directly the Fourier modes of the underlying mass distribution on scales comparable to the survey size and larger…
On fast Generation of Cosmological Random Fields
Julien Carron, Melody Wolk, Istvan Szapudi
The statistical translation invariance of cosmological random fields is broken by a finite survey boundary, correlating the observable Fourier modes. Standard methods for generatin…
Optimal observables in galaxy surveys
Julien Carron, István Szapudi
The sufficient statistics of the one-point probability density function of the dark matter density field is worked out using cosmological perturbation theory and tested to the Mill…
The information content of galaxy surveys
Julien Carron
A large fraction of this thesis is dedicated to the study of the information content of random fields with heavy tails, in particular the lognormal field, a model for the matter de…