22 citations · 68 across the 7 of their papers we have counts for
7 papers
JZ-Tree: GPU friendly neighbour search and friends-of-friends with dual tree walks in JAX plus CUDA
Jens Stücker, Oliver Hahn, Lukas Winkler +2
Algorithms based on spatial tree traversal are widely regarded as among the most efficient and flexible approaches for many problems in CPU-based high-performance computing (HPC).…
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…
Towards detecting Primordial non-Gaussianity in the CMB using Spherical Convolutional Neural Networks
Jorik Melsen, Thomas Flöss, P. Daniel Meerburg
This paper explores a novel application of spherical convolutional neural networks (CNNs) to detect primordial non-Gaussianity in the cosmic microwave background (CMB), a key probe…
Non-linear Electrodynamics from Massive Gravity
Thomas Flöss, Diederik Roest, Tom Westerdijk
As a counterpart to the four-fermion interaction, which describes massive vector exchange at low energies, we investigate the low energy effective action of photons under exchange…
Improving constraints on primordial non-Gaussianity using neural network based reconstruction
Thomas Flöss, P. Daniel Meerburg
We study the use of U-Nets in reconstructing the linear dark matter density field and its consequences for constraining cosmological parameters, in particular primordial non-Gaussi…
Primordial non-Gaussianity and non-Gaussian Covariance
Thomas Flöss, Matteo Biagetti, P. Daniel Meerburg
In the pursuit of primordial non-Gaussianities, we hope to access smaller scales across larger comoving volumes. At low redshift, the search for primordial non-Gaussianities is hin…
The Dark Ages' 21-cm Trispectrum
Thomas Flöss, Tim de Wild, P. Daniel Meerburg +1
We investigate tomography of 21-cm brightness temperature fluctuations during the Dark Ages as a probe for constraining primordial non-Gaussianity. We expand the 21- cm brightness…