Constraining Lorentz violation with cosmology

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.

4 pages, 4 figures

References in corpus (4)

• Strong field effects on binary systems in Einstein-aether theory
• Detecting a Lorentz-Violating Field in Cosmology
• Numerical simulations of gravitational collapse in Einstein-aether theory
• The Cosmology of a Universe with Spontaneously-Broken Lorentz Symmetry

Cited by in corpus (2)

• The Tensor-Vector-Scalar theory and its cosmology
• Vector models of gravitational Lorentz symmetry breaking