Scale dependence of cosmological backreaction

@article{Li2008ScaleDO,
  title={Scale dependence of cosmological backreaction},
  author={N. Li and D. Schwarz},
  journal={Physical Review D},
  year={2008},
  volume={78},
  pages={083531}
}
  • N. Li, D. Schwarz
  • Published 2008
  • Physics
  • Physical Review D
  • Because of the noncommutation of spatial averaging and temporal evolution, inhomogeneities and anisotropies (cosmic structures) influence the evolution of the averaged Universe via the cosmological backreaction mechanism. We study the backreaction effect as a function of averaging scale in a perturbative approach up to higher orders. We calculate the hierarchy of the critical scales, at which 10% effects show up from averaging at different orders. The dominant contribution comes from the… CONTINUE READING
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