paper

Lorentz and Diffeomorphism Violations in Linearized Gravity

arXiv:1712.10268 · doi:10.1016/j.physletb.2018.01.082

Abstract

Lorentz and diffeomorphism violations are studied in linearized gravity using effective field theory. A classification of all gauge-invariant and gauge-violating terms is given. The exact covariant dispersion relation for gravitational modes involving operators of arbitrary mass dimension is constructed, and various special limits are discussed.

17 pages

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