3 papers
astro-ph.CO2025
DISCO-DJ II: a differentiable particle-mesh code for cosmology
Florian List, Oliver Hahn, Thomas Flöss +1
The mildly non-linear regime of cosmic structure formation holds much of the information that upcoming large-scale structure surveys aim to exploit, making fast and accurate predic…
astro-ph.CO2025
Differentiable Halo Mass Prediction and the Cosmology-Dependence of Halo Mass Functions
Jim Buisman, Florian List, Oliver Hahn
Modern cosmological inference increasingly relies on differentiable models to enable efficient, gradient-based parameter estimation and uncertainty quantification. Here, we present…
astro-ph.CO2025
BullFrog: Multi-step perturbation theory as a time integrator for cosmological simulations
Cornelius Rampf, Florian List, Oliver Hahn
Modelling the cosmic large-scale structure can be done through numerical N-body simulations or by using perturbation theory. Here, we present an N-body approach that effectively im…