Orateur
Description
Standard Perturbation Theory, Effective Field Theory and other theories of large-scale structure are usually formulated in terms of Newtonian equations. Newtonian motion gauges were initially designed to enhance Newtonian N-body simulations. They also offer an opportunity to perform SPT or EFTofLSS calculations within a general-relativistic framework. At the same time, they allow to incorporate the effects of radiation, massive neutrinos, and certain classes of non-standard dark matter and modified gravity models "for free", without increasing the computational cost of loop calculations with respect to the pure LambdaCDM limit. We present a proof of concept for the calculation of the one-loop matter power spectrum in real and redshift space in presence of massive neutrinos.