4 papers
Cosmology in the Einstein Telescope era: comparing traditional and simulation-based methods for population inference
Giovanni Antinozzi, Guillermo Franco Abellán, Davide Sciotti +1
The next generation of gravitational wave detectors, such as the Einstein Telescope (ET), will observe orders of magnitude more binary black hole mergers than current facilities. M…
Fast Sampling of Cosmological Initial Conditions with Gaussian Neural Posterior Estimation
Oleg Savchenko, Guillermo Franco Abellán, Florian List +2
Knowledge of the primordial matter density field from which the large-scale structure of the Universe emerged over cosmic time is of fundamental importance for cosmology. However,…
Mean-Field Simulation-Based Inference for Cosmological Initial Conditions
Oleg Savchenko, Florian List, Guillermo Franco Abellán +2
Reconstructing cosmological initial conditions (ICs) from late-time observations is a difficult task, which relies on the use of computationally expensive simulators alongside soph…
Effects of primordial fluctuations on relic neutrino simulations
Fabian Zimmer, Guillermo Franco Abellán, Shin'ichiro Ando
After decoupling, relic neutrinos traverse the evolving gravitational imhomogeneities along their trajectories. Once they turn non-relativistic, this results in a significant ampli…