  We develop a real space theory of the voltage bias driven transition from a
Mott insulator to a correlated metal. Within our Keldysh mean field approach
the problem reduces to a self-consistency scheme for the charge and spin
profiles in this open system. We solve this problem for a two dimensional
antiferromagnetic Mott insulator at zero temperature. The charge and spin
magnitude is uniform over the system at zero bias, but a bias $V$ leads to
spatial modulation over a lengthscale $\xi(V)$ near the edges. $\xi(V)$ grows
rapidly and becomes comparable to system size as $V$ increases towards a
threshold scale $V_c$. The linear response conductance of the insulator is zero
with the current being exponentially small for $V \ll V_c$. The current
increases rapidly as $V \rightarrow V_c$. Beyond $V_c$, we observe an
inhomogeneous low moment antiferromagnetic metal, and at even larger bias a
current saturated paramagnetic metal. We suggest an approximate scheme for the
spectral features of this nonequilibrium system.
