Phantom Crossing DGP Gravity
  We propose a phantom crossing Dvali--Gabadadze--Porrati (DGP) model. In our
model, the effective equation of state of the DGP gravity crosses the phantom
divide line. We demonstrate crossing of the phantom divide does not occur
within the framework of the original DGP model or the DGP model developed by
Dvali and Turner. By extending their model, we construct a model that realizes
crossing of the phantom divide. DGP models can account for late-time
acceleration of the universe without dark energy. Phantom Crossing DGP model is
more compatible with recent observational data from Type Ia Supernovae (SNIa),
Cosmic Microwave Background (CMB) anisotropies, and Baryon Acoustic
Oscillations (BAO) than the original DGP model or the DGP model developed by
Dvali and Turner.
