Non-singular cosmology in a model of non-relativistic gravity
Jun, 2009Citations per year
Abstract: (arXiv)
We present a model of non-relativistic gravitational theory which is power-counting renormalizable in 3+1 dimensional spacetime. When applied to cosmology, the relativity-violation terms lead to a dark radiation component, which can give rise to a bounce if dark radiation possesses negative energy density. Additionally, we investigate a cyclic extension of the non-singular cosmology in which the universe undergoes contractions and expansions periodically. In both scenarios the background theory is well defined at the quantum level.- 04.60.-m
- 04.60.Bc
- 98.80.-k
- gravitation: nonrelativistic
- energy: density
- dimension: 3
- gravitation: renormalizable
- singularity
- cosmological model
- field equations: bounce
References(96)
Figures(5)