Using Perturbative Least Action to Recover Cosmological Initial Conditions
Astrophysics
2011-02-11 v2
Abstract
We introduce a new method for generating initial conditions consistent with highly nonlinear observations of density and velocity fields. Using a variant of the Least Action method, called Perturbative Least Action (PLA), we show that it is possible to generate several different sets of initial conditions, each of which will satisfy a set of highly nonlinear observational constraints at the present day. We then discuss a code written to test and apply this method and present the results of several simulations.
Keywords
Cite
@article{arxiv.astro-ph/9912408,
title = {Using Perturbative Least Action to Recover Cosmological Initial Conditions},
author = {David M. Goldberg and David N. Spergel},
journal= {arXiv preprint arXiv:astro-ph/9912408},
year = {2011}
}
Comments
24 pages, 6 postscript figures. Accepted for publication in Astrophysical Journal