Imperfect Dark Energy from Kinetic Gravity Braiding

@article{Deffayet2010ImperfectDE,
  title={Imperfect Dark Energy from Kinetic Gravity Braiding},
  author={C. Deffayet and O. Pujol{\`a}s and I. Sawicki and A. Vikman},
  journal={Journal of Cosmology and Astroparticle Physics},
  year={2010},
  volume={2010},
  pages={026-026}
}
We introduce a large class of scalar-tensor models with interactions containing the second derivatives of the scalar field but not leading to additional degrees of freedom. These models exhibit peculiar features, such as an essential mixing of scalar and tensor kinetic terms, which we have named kinetic braiding. This braiding causes the scalar stress tensor to deviate from the perfect-fluid form. Cosmology in these models possesses a rich phenomenology, even in the limit where the scalar is an… Expand
457 Citations

Figures and Tables from this paper

The effective field theory of dark energy
  • 194
  • Highly Influenced
  • PDF
Consistent perturbations in an imperfect fluid
  • 41
  • PDF
Kinetic mixing in scalar-tensor theories of gravity
  • 45
  • Highly Influenced
  • PDF
Dust of dark energy
  • 153
  • PDF
Kinetic gravity braiding wormhole geometries
  • 1
  • PDF
A unifying description of dark energy
  • 151
  • PDF
On dark energy models of single scalar field
  • 13
  • Highly Influenced
  • PDF
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 106 REFERENCES
When scalar field is kinetically coupled to the Einstein tensor
  • 69
  • PDF
Dust of dark energy
  • 153
  • PDF
Scalar–tensor models of normal and phantom dark energy
  • 186
  • PDF
Ghosts, strong coupling and accidental symmetries in massive gravity
  • 104
  • PDF
Dark-energy evolution across the cosmological-constant boundary
  • 121
  • PDF
Anisotropic dark energy: dynamics of the background and perturbations
  • 133
  • PDF
Models of non-relativistic quantum gravity: the good, the bad and the healthy
  • 254
  • PDF
...
1
2
3
4
5
...