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astro-ph.IM2025
Photo- Estimation with Normalizing Flow
Yiming Ren, Kwan Chuen Chan, Le Zhang +6
Accurate photometric redshift (photo-) estimation is a key challenge in cosmology, as uncertainties in photo- directly limit the scientific return of large-scale structure an…
astro-ph.CO2025
Testing the Equivalence Principle on Cosmological Scales Using Peculiar Acceleration Power Spectrum
Guoyuan Lu, Yi Zheng, Le Zhang +3
While the (weak) Equivalence Principle (EP) has been rigorously tested within the solar system, its validity on cosmological scales, particularly in the context of dark matter and…