Solving Large Scale Structure in Ten Easy Steps with COLA

2 Jan 2013Svetlin TassevMatias ZaldarriagaDaniel Eisenstein

We present the COmoving Lagrangian Acceleration (COLA) method: an N-body method for solving for Large Scale Structure (LSS) in a frame that is comoving with observers following trajectories calculated in Lagrangian Perturbation Theory (LPT). Unlike standard N-body methods, the COLA method can straightforwardly trade accuracy at small-scales in order to gain computational speed without sacrificing accuracy at large scales... (read more)

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