2021•GalaxiesOpen access

On Plane Wave Solutions in Lorentz-Violating Extensions of Gravity

J. R. Nascimento, A. Yu. Petrov, A. R. Vieira

Abstract

In this paper, we obtain dispersion relations corresponding to plane wave solutions in Lorentz-breaking extensions of gravity with dimension 3, 4, 5 and 6 operators. We demonstrate that these dispersion relations display a usual Lorentz-invariant mode when the corresponding additive term involves higher derivatives.

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Key concepts: Lorentz transformation, Lorentz covariance, Dispersion relation, Plane wave, Physics, Plane (geometry), Dispersion (optics), Invariant (physics)