Higher dimensional cosmological model with a phantom field

Abstract

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

References in corpus (1)

• New Hubble Space Telescope Discoveries of Type Ia Supernovae at z > 1: Narrowing Constraints on the Early Behavior of Dark Energy

Cited by in corpus (1)

• The nature of cosmological singularities in isotropic universes and braneworlds