Dark Energy from structure: a status report

@article{Buchert2007DarkEF,
  title={Dark Energy from structure: a status report},
  author={Thomas Buchert},
  journal={General Relativity and Gravitation},
  year={2007},
  volume={40},
  pages={467-527}
}
  • T. Buchert
  • Published 14 July 2007
  • Physics
  • General Relativity and Gravitation
The effective evolution of an inhomogeneous universe model in any theory of gravitation may be described in terms of spatially averaged variables. In Einstein’s theory, restricting attention to scalar variables, this evolution can be modeled by solutions of a set of Friedmann equations for an effective volume scale factor, with matter and backreaction source terms. The latter can be represented by an effective scalar field (“morphon field”) modeling Dark Energy. The present work provides an… 
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