2 code implementations • 20 Sep 2016 • Xiao Fang, Jonathan A. Blazek, Joseph E. McEwen, Christopher M. Hirata
Cosmological perturbation theory is a powerful tool to predict the statistics of large-scale structure in the weakly non-linear regime, but even at 1-loop order it results in computationally expensive mode-coupling integrals.
Cosmology and Nongalactic Astrophysics
2 code implementations • 15 Mar 2016 • Joseph E. McEwen, Xiao Fang, Christopher M. Hirata, Jonathan A. Blazek
We present a novel algorithm, FAST-PT, for performing convolution or mode-coupling integrals that appear in nonlinear cosmological perturbation theory.
Cosmology and Nongalactic Astrophysics
