Phantom Instability of Viscous Dark Energy in Anisotropic Space-Time
  Phantom dark energy is a proposal that explains the current observations that
mildly favor the equation of state of dark energy $\omega^{de}$ crossing -1 at
68% confidence level. However, phantom fields are generally ruled out by
ultraviolet quantum instabilities. To overcome this discrepancy, in this paper
we propose a mechanism to show that how the presence of bulk viscosity in the
cosmic fluid can temporarily drive the fluid into the phantom region
($\omega<-1$). As time is going on, phantom decays and ultimately $\omega^{de}$
approaches to -1. Then we show these quintessence and phantom descriptions of
non-viscous and viscous dark energy and reconstruct the potential of these two
scalar fields. Also a diagnostic for these models are performed by using the
statefinder pairs $\{s,r\}$. All results are obtained in an anisotropic
space-time which is a generalization of FLRW universe.
