Seminarium Teorii Względności i Grawitacji

I will present some work studying the quantum dynamics of the Lemaître-Tolman-Bondi space-times using a polymer quantization prescription in an analogous fashion to loop quantum cosmology. By solving an effective equation derived from this quantization, we find analytical solutions for the Oppenheimer-Snyder and thin-shell collapse models, and numerical solutions for a variety of asymptotically flat collapsing dust profiles. Quantum gravity effects cause a nonsingular bounce to occur in the Planck regime, resolving the singularity and resulting in the formation of an outgoing shockwave that substantially modifies the standard information loss problem.