Fredagskollokvium: Defying Einstein in N-body Simulations

The cosmological Standard Model, LambdaCDM, gives an excellent fit to observations on large scales, but has several problems. For instance, what is the nature of the two main components: Dark Matter and Dark Energy?
Going beyond Einstein, by slightly modifying the law of gravity, is an attempt at solving some of the problems with LambdaCDM.
I will explain how to simulate a universe which doesn't obey Einstein. This involves simulating a scalar field and moving millions of particles according to the modified laws of gravity.