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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…
astro-ph.CO2025
Fast Generation of Weak Lensing Maps in Modified Gravity with COLA
Sophie Hoyland, Hans A. Winther, Daniela Saadeh +2
Accurate predictions of weak lensing observables are essential for understanding the large-scale structure of the Universe and probing the nature of gravity. In this work, we prese…