Constraining Lorentz violation with cosmology.

  title={Constraining Lorentz violation with cosmology.},
  author={J. Zuntz and P. Ferreira and T. Zlosnik},
  journal={Physical review letters},
  volume={101 26},
The Einstein-aether theory provides a simple, dynamical mechanism for breaking Lorentz invariance. It does so within a generally covariant context and may emerge from quantum effects in more fundamental theories. The theory leads to a preferred frame and can have distinct experimental signatures. In this Letter, we perform a comprehensive study of the cosmological effects of the Einstein-aether theory and use observational data to constrain it. Allied to previously determined consistency and… Expand

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