HIGHLIGHTS
- who: Sebastian Garcia-Saenz and Cédric Deffayet from the Theoretical Physics, Blackett Laboratory, Imperial College London, London , AZ, UK have published the article: Coupling to Matter in Degenerate Scalar-Tensor Theories, in the Journal: (JOURNAL)
- what: The authors focus the attention to the subset of DHOST theories that are at most quadratic in the second derivative of the scalar field, Sg = Z d4 x p h i - g F (φ, X ) R + P(φ, X ) + Q(φ, X ) φ + C µνρσ ∇µ ∇ν φ∇ρ ∇σ φ.
SUMMARY
The extension of general relativity (GR) by additional light degrees of freedom is . . .
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