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Keyword: cosmological perturbation theory ×Clear all

2 claims from 1 paper

1. Physics and Astronomy › Cosmology and Gravitation Theories

   Consistent Initial Conditions for Early Modified Gravity in Effective Field Theory

   Pan, Meng-Xiang, Gen, Raveri and Silvestri · arXiv (Cornell University) · 2025

   The paper derives theory-consistent initial conditions for Horndeski gravity, builds them into the EFTCAMB code, and finds they change predicted CMB spectra compared with using general relativity's initial conditions.

   Unchecked2 claims
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   1. UncheckedThe authors derive consistent initial conditions for Horndeski modified gravity in an effective field theory approach, assuming its functions are constant at early times.“We derive the consistent ICs for Horndeski theory in the Effective Field Theory (EFT) approach, assuming constant EFT functions at early times.”
   2. Unchecked“We identify significant deviations when comparing Cosmic Microwave Background angular power spectra in MG models obtained with consistent MG ICs versus inconsistent GR ICs.”