Work

Plane waves in the generalized Galileon theory

Year: 2012

Type: article

Abstract: We present an exact plane wave solution of the most general shift-symmetric Horndeski (generalized Galileon) theory. The solution consists of the scalar part and the gravitational part with two polarization modes. The former is due to the presence of the nontrivial Galileon scalar field, and it is parametrized by an arbitrary function of the light-cone coordinate. For a trivial scalar field configuration, the solution is equivalent to the plane gravitational wave in general relativity. When the metric is Minkowski, we reproduce known results for the plane waves of $k$-essence and soliton-like solutions of a noncovariant Galileon model in a flat space-time.

Source: Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D. Particles and fields

DOI: 10.1103/physrevd.86.084037

Author: Eugeny Babichev

Institutions: Université Paris-Sud, Centre National de la Recherche Scientifique, Institut d'Astrophysique de Paris, Laboratoire de Physique Théorique d’Orsay, Université Pierre-et-Marie-Curie

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W1970431342

FWCI: 0.699

Cites: 27

Cited by: 14

Related to: 10