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Higher dimensional cosmological model with a phantom field

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 Added by Tae Hoon Lee
 Publication date 2008
  fields Physics
and research's language is English




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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.



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