Search Results for author:
Found 7 papers, 4 papers with code
Fast and robust Bayesian Inference using Gaussian Processes with GPry
GPry does not need any pre-training, special hardware such as GPUs, and is intended as a drop-in replacement for traditional Monte Carlo methods for Bayesian inference.
CosmicNet I: Physics-driven implementation of neural networks within Boltzmann-Einstein solvers
Einstein-Boltzmann Solvers (EBSs) are run on a massive scale by the cosmology community when fitting cosmological models to data.
Cosmology and Nongalactic Astrophysics
A precise numerical estimation of the magnetic field generated around recombination
Since scalar perturbations do not generate any magnetic field as they are curl-free, one has to resort to second-order perturbation theory to compute the magnetic field generated by this effect.
Cosmology and Nongalactic Astrophysics Astrophysics of Galaxies General Relativity and Quantum Cosmology
Impact of polarisation on the intrinsic CMB bispectrum
We find that the presence of the intrinsic bispectrum will bias a measurement of primordial non-Gaussianity of local type by $f_{NL}^\text{bias}=0. 66$ for an ideal experiment with $\ell_\text{max}=3000$.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
The intrinsic B-mode polarisation of the Cosmic Microwave Background
The intrinsic B-mode polarisation is present independent of the initial conditions and might contaminate the signal from primordial gravitational waves.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
Spectral distortions in the cosmic microwave background polarization
We find that $B$-modes are of the same order of magnitude as $E$-modes.
Cosmology and Nongalactic Astrophysics General Relativity and Quantum Cosmology
The intrinsic bispectrum of the Cosmic Microwave Background
We develop a new, efficient code for solving the second-order Einstein-Boltzmann equations, and use it to estimate the intrinsic CMB non-Gaussianity arising from the non-linear evolution of density perturbations.
Cosmology and Nongalactic Astrophysics High Energy Physics - Theory
