  We investigate some of the quantum gravity effects on a vacuum created pair
of $(D{\bar D})_3$-brane by a non-linear $U(1)$ gauge theory on a $D_4$-brane.
In particular we obtain a four dimensional quantum Kerr(Newman) black hole in
an effective torsion curvature formalism sourced by a two form dynamics in the
world-volume of a $D_4$-brane on $S^1$. Interestingly the event horizon is
found to be independent of a non-linear electric charge and the $4D$ quantum
black hole is shown to describe a degenerate vacua in string theory. We show
that the quantum Kerr brane universe possesses its origin in a de Sitter
vacuum. In a nearly $S_2$-symmetric limit the Kerr geometries may seen to
describe a Schwarzschild and Reissner-Nordstrom quantum black holes. It is
argued that a quantum Reissner-Nordstrom tunnels to a large class of degenerate
Schwazschild vacua. In a low energy limit the non-linear electric charge
becomes significant at the expense of the degeneracies. In the limit the
quantum geometries may identify with the semi-classical black holes established
in Einstein gravity. Analysis reveals that a quantum geometry on a vacuum
created $D_3$-brane universe may be described by a low energy perturbative
string vacuum in presence of a non-perturbative quantum correction.
