Crossing the phantom divide with Ricci-like holographic dark energy
  We study a holographic model for the dark energy considered recently in the
literature which postulates an energy density $\rho \sim R$, where $R$ is the
Ricci scalar curvature. We obtain a cosmological scenario that comes from
considering two non-interacting fluids along a reasonable Ansatz for the cosmic
coincidence parameter. We adjust the involved parameters in the model according
to the observational data and we show that the equation of state for the dark
energy experience a cross through the -1 barrier. In addition, we find a
disagreement in these parameters with respect to an approach from a scalar
field theory.
