How to Simulate the Universe in a Computer

  title={How to Simulate the Universe in a Computer},
  author={Alexander Knebe},
  journal={Publications of the Astronomical Society of Australia},
  pages={184 - 189}
  • A. Knebe
  • Published 21 December 2004
  • Physics
  • Publications of the Astronomical Society of Australia
Abstract In this contribution a broad overview of the methodologies of cosmological N-body simulations and a short introduction explaining the general idea behind such simulations is presented. After explaining how to set up the initial conditions using a set of N particles two (diverse) techniques are presented for evolving these particles forward in time under the influence of their self-gravity. One technique (tree codes) is solely based upon a sophistication of the direct particle–particle… 
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