Propagations of massive graviton in the deformed Hořava-Lifshitz gravity
arXiv:0906.0848 · doi:10.1103/PhysRevD.81.064006
Abstract
We study massive graviton propagations of scalar, vector, and tensor modes in the deformed Hořava-Lifshitz gravity by introducing Lorentz-violating mass term. It turns out that vector and tensor modes are massively propagating on the Minkowski spacetime background. However, adding the mass term does not cure a ghost instability in the Hořava scalar.
17 pages, version with projectability requirement, to appear in PRD
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