Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2009-01-20
Phys.Rev.D81:064009,2010
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
25 pages, 7 figures
Scientific paper
10.1103/PhysRevD.81.064009
We review the different options for resolution of the black hole loss of information problem. We classify them first into radical options, which require a quantum theory of gravity which has large deviations from semi-classical physics on macroscopic scales, such as non-locality or endowing horizons with special properties not seen in the semi-classical approximation, and conservative options, which do not need such help. Among the conservative options, we argue that restoring unitary evolution relies on elimination of singularities. We argue that this should hold also in the AdS/CFT correspondence.
Hossenfelder Sabine
Smolin Lee
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