Maximal extension of the Schwarzschild space-time inspired by noncommutative geometry

We derive a transformation of the noncommutative geometry inspired Schwarzs-child solution into new coordinates, such that the apparent unphysical singularities of the metric are removed. Moreover, we give the maximal singularity-free atlas for the manifold with the metric under consideration. This atlas reveals many new features e. g., it turns out to describe an infinite lattice of asymptotically flat universes connected by black hole tunnels. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3317913]