A Closure Theory for Nonlinear Evolution of Cosmological Power Spectra
A Closure Theory for Nonlinear Evolution of Cosmological Power Spectra
We apply a non-linear statistical method in turbulence to the cosmological perturbation theory and derive a closed set of evolution equations for matter power spectra. The resultant closure equations consistently recover the one-loop results of standard perturbation theory and beyond that, it is still capable of treating the non-linear evolution …