The Cosmology of a Universe with Spontaneously-Broken Lorentz Symmetry
A self consistent effective field theory of modified gravity has recently been proposed with spontaneous breaking of local Lorentz invariance. The symmetry is broken by a vector field with the wrong-sign mass term and it has been shown to have additional graviton modes and modified dispersion relati...
Main Authors: | , , , |
---|---|
Format: | Journal article |
Published: |
2006
|