Nonlocal Models of Cosmic Acceleration

@article{Woodard2014NonlocalMO,
  title={Nonlocal Models of Cosmic Acceleration},
  author={R. Woodard},
  journal={Foundations of Physics},
  year={2014},
  volume={44},
  pages={213-233}
}
  • R. Woodard
  • Published 2014
  • Physics
  • Foundations of Physics
I review a class of nonlocally modified gravity models which were proposed to explain the current phase of cosmic acceleration without dark energy. Among the topics considered are deriving causal and conserved field equations, adjusting the model to make it support a given expansion history, why these models do not require an elaborate screening mechanism to evade solar system tests, degrees of freedom and kinetic stability, and the negative verdict of structure formation. Although these simple… Expand
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