Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-12-12
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
4 pages, prepared for the proceedings of the 16th workshop on general relativity and gravitation, Niigata, Japan, Nov.27 - Dec
Scientific paper
We discuss the impact of Lorentz violation on the cosmology. Firstly, we show that the Lorentz violation affects the dynamics of the chaotic inflationary model and gives rise to an interesting feature. Secondly, we propose the Lorentz violating DGP brane models where the Lorentz violating terms on the brane accelerate the current universe. We conjecture that the ghost disappears in the Lorentz violating DGP models.
Kanno Sugumi
Soda Jiro
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