A generative adversarial network emulator upscales low-resolution N-body simulations with non-zero curvature to high resolution, recovering most large-scale power but with up to 10% small-scale suppression and altered halo profiles.
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Forecasts show Euclid combined probes can constrain log f_R0 at the 1% level for fiducial f_R0=5e-6, distinguishing from LCDM at >3 sigma in optimistic settings.
CLOE has been extended to model magnification bias, massive neutrinos, and modified gravity for Euclid probes and validated via posterior sampling on synthetic data.
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Separate Universe Super-Resolution Emulator
A generative adversarial network emulator upscales low-resolution N-body simulations with non-zero curvature to high resolution, recovering most large-scale power but with up to 10% small-scale suppression and altered halo profiles.