Publication Date:
2015-12-24
Description:
Author(s): R. S. Kolevatov We consider small perturbations about homogeneous backgrounds in dilatationally invariant Galileon models. The issues we address are stability (absence of ghosts and gradient instabilities) and superluminality. We show that in the Minkowski background, it is possible to construct the Lagrangian in s… [Phys. Rev. D 92, 123532] Published Wed Dec 23, 2015
Keywords:
Cosmology
Print ISSN:
0556-2821
Electronic ISSN:
1089-4918
Topics:
Physics