Spectra, vacua and the unitarity of Lovelock gravity in D-dimensional AdS spacetimes
arXiv:1204.3814 · doi:10.1103/PhysRevD.86.044041
Abstract
We explicitly confirm the expectation that generic Lovelock gravity in D dimensions has a unitary massless spin-2 excitation around any one of its constant curvature vacua just like the cosmological Einstein gravity. The propagator of the theory reduces to that of Einstein's gravity, but scattering amplitudes must be computed with an effective Newton's constant which we provide. Tree-level unitarity imposes a single constraint on the parameters of the theory yielding a wide range of unitary region. As an example, we explicitly work out the details of the cubic Lovelock theory.
9 pages, 2 references added
References in corpus (9)
- Thermodynamic route to Field equations in Lanczos-Lovelock Gravity
- Critical Gravity in Four Dimensions
- Critical Points of D-Dimensional Extended Gravities
- Lovelock Gravity at the Crossroads of Palatini and Metric Formulations
- Thermodynamic structure of Lanczos-Lovelock field equations from near-horizon symmetries
- Lovelock theories, holography and the fate of the viscosity bound
- Unitarity analysis of general Born-Infeld gravity theories
- Structure of Lanczos-Lovelock Lagrangians in Critical Dimensions
- All Bulk and Boundary Unitary Cubic Curvature Theories in Three Dimensions
Cited by in corpus (7)
- AdS-plane wave and pp-wave solutions of generic gravity theories
- Three Dimensional Modified Gravities as Holographic Limits of Lancsoz-Lovelock Theories
- 3D Lovelock Gravity and the Holographic c-Theorem
- Lower-dimensional Limits of Cubic Lovelock Gravity
- Linearized gravity in terms of differential forms
- Scaling symmetry, Smarr relation, and the extended first law in lower-dimensional Lovelock gravity
- A Systematic Construction of Kastor-Traschen Currents and their Extensions to Generic Powers of Curvature