Purely Kinetic Coupled Gravity
arXiv:1106.2815 · doi:10.1016/j.physletb.2011.07.066
Abstract
Cosmic acceleration can be achieved not only with a sufficiently flat scalar field potential but through kinetic terms coupled to gravity. These derivative couplings impose a shift symmetry on the scalar field, aiding naturalness. We write the most general purely kinetic action not exceeding mass dimension six and obeying second order field equations. The result reduces to a simple form involving a coupling of the Einstein tensor with the kinetic term and can be interpreted as adding a new term to Galileon gravity in curved spacetime. We examine the cosmological implications of the effective dark energy and classify the dynamical attractor solutions, finding a quasistable loitering phase mimicking late time acceleration by a cosmological constant.
7 pages, 3 figures
References in corpus (6)
Cited by in corpus (60)
- Dark Energy after GW170817: dead ends and the road ahead
- Dressing a black hole with a time-dependent Galileon
- Disformal invariance of second order tensor-scalar theories: framing the Horndeski action
- Conditions for the cosmological viability of the most general scalar-tensor theories and their applications to extended Galileon dark energy models
- Effective Field Theory of Dark Energy: a Review
- Cosmology of the Galileon from Massive Gravity
- Black hole perturbation in the most general scalar-tensor theory with second-order field equations I: The odd-parity sector
- Black holes and stars in Horndeski theory
- Inflation and primordial non-Gaussianities of "generalized Galileons"
- DBI Galileons in the Einstein Frame: Local Gravity and Cosmology
- Nonlinear structure formation in the Cubic Galileon gravity model
- Linear perturbations in Galileon gravity models
- The Paths of Gravity in Galileon Cosmology
- Slowly rotating black hole solutions in Horndeski gravity
- Neutron stars in Horndeski gravity
- The parameter space in Galileon gravity models
- Gravitational wave lensing beyond general relativity: birefringence, echoes and shadows
- Realistic cosmological scenario with non-minimal kinetic coupling
- Horndeski theories self-tuning to a de Sitter vacuum
- Instability of hairy black holes in shift-symmetric Horndeski theories
- Solutions in the generalized Proca theory with the nonminimal coupling to the Einstein tensor
- Reheating in nonminimal derivative coupling model
- Reviving Horndeski Theory using Teleparallel Gravity after GW170817
- Fab Four: When John and George play gravitation and cosmology
- Constraints on general second-order scalar-tensor models from gravitational Cherenkov radiation
- Fab 5: Noncanonical Kinetic Gravity, Self Tuning, and Cosmic Acceleration
- Cosmology with nonminimal kinetic coupling and a power-law potential
- Phase Transition to a Hairy Black Hole in Asymptotically Flat Spacetime
- Self tuning scalar tensor black holes
- Reviving non-Minimal Horndeski-like Theories after GW170817: Kinetic Coupling Corrected Einstein-Gauss-Bonnet Inflation
- The Well-Tempered Cosmological Constant
- Classification of the Horndeski cosmologies via Noether Symmetries
- Nonminimal derivative coupling scalar-tensor theories: odd-parity perturbations and black hole stability
- Teleparallel Dark Energy with Purely Non-minimal Coupling to Gravity
- A data-driven Reconstruction of Horndeski gravity via the Gaussian processes
- Non-minimal derivative coupling gravity in cosmology
- Oscillatory inflation in non-minimal derivative coupling model
- Circular orbits and accretion process in a class of Horndeski/Galileon black holes
- Scalar wormholes with nonminimal derivative coupling
- Anisotropic cosmological models in Horndeski gravity
- Reheating temperature in non-minimal derivative coupling model
- Cosmology with nonminimal kinetic coupling and a Higgs-like potential
- Self Tuning Scalar Fields in Spherically Symmetric Spacetimes
- How Fabulous Is Fab 5 Cosmology?
- Einstein static Universe in non-minimal kinetic coupled gravity
- Cosmology with non-minimal coupled gravity: inflation and perturbation analysis
- General dynamical properties of cosmological models with nonminimal kinetic coupling
- Stable black holes in shift-symmetric Horndeski theories
- Well-Tempered Cosmology
- Temperature in warm inflation in non minimal kinetic coupling model
- Compact astrophysical objects in modified gravity
- Are Scalar and Tensor Deviations Related in Modified Gravity?
- Rapid Oscillatory quintessence with variable equation of state parameter in non minimal derivative coupling model
- Dynamical analysis for a scalar-tensor model with kinetic and non-minimal couplings
- The Well-Tempered Cosmological Constant: Fugue in B
- Dynamical System of Scalar Field from 2-Dimension to 3-D and its Cosmological Implication
- Disformally self-tuning gravity
- The speed of gravitational waves and power-law solutions in a scalar-tensor model
- Generalized Horndeski-Like Einstein Gauss-Bonnet Inflation with Massless Primordial Gravitons
- Instability of the cosmological DBI-Galileon in the non-relativistic limit