Higher dimensional cosmological model with a phantom field

Details Higher dimensional cosmological model with a phantom field Higher dimensional cosmological model with a phantom field

2008-01-24

arxiv.org/abs/0801.3781v3

Phys.Rev.D78:047503,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, 2 figures; References added

Scientific paper

10.1103/PhysRevD.78.047503

We consider a higher dimensional gravity theory with a negative kinetic energy scalar field and a cosmological constant. We find that the theory admits an exact cosmological solution for the scale factor of our universe. It has the feature that the universe undergoes a continuous transition from deceleration to acceleration at some finite time. This transition time can be interpreted as that of recent acceleration of our universe.

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