Black hole information problem and quantum gravity

Details Black hole information problem and quantum gravity Black hole information problem and quantum gravity

2009-09-23

arxiv.org/abs/0909.4143v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, proceedings of XXV Max Born Symposium

Scientific paper

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.

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