From the 1 of 9 linked papers with an AI index.
9 papers
An efficient one-loop EFTofLSS framework for Vainshtein-screened Horndeski gravity
Stan Verhoeve, Dani de Boe, Gen Ye +1
The authors extend the PyBird code to compute one-loop matter power spectra for Vainshtein‑screened Horndeski and nDGP gravity using a direct ODE approach for time‑dependent kernel…
Ray-traced weak lensing convergence in screened modified gravity theories
Mattia Pantiri, Matthieu Schaller, Alessandra Silvestri +2
Weak gravitational lensing is one of the primary cosmological probes, providing powerful constraints on the cosmological model. As Stage IV surveys are expected to deliver data of…
-EFTCAMB: A Cobaya-Integrated, Python-Wrapped Extension of EFTCAMB for Covariant Horndeski Gravity
Gen Ye, Shijie Lin, Jiaming Pan +6
We present , the official successor to . The original is designed as a consistent and numerically stable implemen…
Nonlinear Scales in Luminal Horndeski -- I. Halo mass function and power spectrum boost in models with Vainshtein screening
Dani de Boe, Mattia Pantiri, Gen Ye +1
We investigate nonlinear structure formation in Horndeski gravity with a luminal gravitational wave speed () using the spherical collapse model incorporating Vainshtein sc…
Consistent Initial Conditions for Early Modified Gravity in Effective Field Theory
Jiaming Pan, Meng-Xiang Lin, Gen Ye +2
Precise initial conditions (ICs) are crucial for accurate computation in cosmological perturbation theory. We derive the consistent ICs for Horndeski theory in the Effective Field…
A General Model for Dark Energy Crossing the Phantom Divide
Zhibang Yao, Gen Ye, Alessandra Silvestri
Within the framework of spatially covariant theories, we propose a general model for dark energy (DE) in which the cosmological background and perturbations are independently contr…