Granules, solitons, and miniclusters: axion-like particles gone nonlinear
by Jens Niemeyer (Goettingen U.)
at DESY Hamburg ( build. 2a, SR2 )
Scenarios of structure formation with axion-like particle (ALP) dark matter have distinctive signatures on scales ranging from the Hubble length to astronomical units. They are governed almost entirely by the particle mass and therefore very predictive. However, much of the phenomenology is highly nonlinear, requiring large simulations and, in some cases, novel computational tools. Some approaches for such simulations will be described and first results presented.