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arXiv · 0808.1824

Constraining Lorentz violation with cosmology

J. A. Zuntz·P. G. Ferreira·T. G. Zlosnik
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Abstract

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 experimental constraints, we find that an Einstein-Aether universe can fit experimental data over a wide range of its parameter space, but requires a specific rescaling of the other cosmological densities.

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BibTeXRIS

J. A. Zuntz, P. G. Ferreira, T. G. Zlosnik. 2008-08-13. Constraining Lorentz violation with cosmology. https://doi.org/10.1103/physrevlett.101.261102

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