Higher dimensional cosmological model with a phantom field
arXiv:0801.3781 · doi:10.1103/PhysRevD.78.047503
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
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- The nature of cosmological singularities in isotropic universes and braneworlds
- Kaluza-Klein mass spectra on extended dimensional branes
- Degeneracy pressure of relic neutrinos and cosmic coincidence problem
- Equation of State Parameters for Fluid of Stringy Extended Objects in Cosmology with Cosmological Constant
- Supernova constraints on higher-dimensional cosmology with a phantom field
- Geometrical and hydrodynamic aspects of five-dimensional Schwarzschild black hole