Speaker
Description
Cosmological neutrino mass bounds are in tension with laboratory experiments, making studies of a variety of neutrino phenomena imperative. I will describe the scale-dependent cosmological clustering of massive neutrinos, beginning with a non-linear perturbation theory developed by my collaborators and me, called Flows For The Masses (FFTM). It combines three ingredients: multi-fluid perturbation theory, non-linear mode-coupling integrals, and FFT-based acceleration. Using FFTM, I will study neutrinos' clustering around halos and their gravitational lensing of the CMB. I will consider the dependence of neutrino clustering upon their mass ordering, as well as observable consequences of non-standard neutrino models. Finally, I will discuss ongoing and planned work on observable weak lensing predictions and improvements to N-body neutrino simulations.
