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Negative energy and stability in scalar-tensor gravity

Valerio Faraoni
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Abstract

Linearized gravitational waves in Brans-Dicke and scalar-tensor theories carry negative energy. A gauge-invariant analysis shows that the background Minkowski space is stable at the classical level with respect to linear scalar and tensor inhomogeneous perturbations.

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Valerio Faraoni. 2004-08-20. Negative energy and stability in scalar-tensor gravity. https://doi.org/10.1103/physrevd.70.081501

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