Higher dimensional cosmological model with a phantom field

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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.
4 pages, 2 figures; References added

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General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/205270

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0801.3781
 http://arxiv.org/abs/0801.3781
 Phys.Rev.D78:047503,2008
 doi:10.1103/PhysRevD.78.047503

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arXiv