3 papers
astro-ph.CO2025
A field-level reaction for screened modified gravity
Daniela Saadeh, Kazuya Koyama, Xan Morice-Atkinson
We present a field-level reaction framework to emulate the nonlinear effects of screened modified gravity on the cosmic web. This approach is designed to enable field-level inferen…
gr-qc2025
LearningMatch: Siamese Neural Network Learns the Match Manifold
Susanna Green, Andrew Lundgren, Xan Morice-Atkinson
The match, which is defined as the the similarity between two waveform templates, is a fundamental calculation in computationally expensive gravitational-wave data-analysis pipelin…
astro-ph.CO2024
A field-level emulator for modified gravity
Daniela Saadeh, Kazuya Koyama, Xan Morice-Atkinson
Stage IV surveys like LSST and Euclid present a unique opportunity to shed light on the nature of dark energy. However, their full constraining power cannot be unlocked unless accu…