Stability of the Schwarzschild Interior in Loop Quantum Gravity
  In recent work, the Schwarzschild interior of a black hole was investigated, incorporating quantum gravitational modifications due to loop quantum gravity. The central Schwarzschild singularity was shown to be replaced by a Nariai type universe. In this brief report we show that this interior solution is stable with respect to small perturbations, in contrast to the classical Nariai universe. 
Christian G. Boehmer, Kevin Vandersloot