Black hole information problem and quantum gravity
arXiv:0909.4143 · doi:10.1063/1.3284395
Abstract
The gravity-scalar field system in spherical symmetry provides a natural setting for exploring gravitational collapse and its aftermath in quantum gravity. In a canonical approach, we give constructions of the constraint and Hamiltonian operators. Matter-gravity entanglement is an inherent feature of physical states, whether or not there is a black hole. Matter fields alone are an open system with a non-unitary evolution. However, if there is a successful theory of quantum gravity, there is no information loss.
arXiv comment4 pages, proceedings of XXV Max Born Symposium