Information loss in black holes

@article{Hawking2005InformationLI,
  title={Information loss in black holes},
  author={Stephen William Hawking},
  journal={Physical Review D},
  year={2005},
  volume={72},
  pages={084013}
}
  • S. Hawking
  • Published 18 July 2005
  • Physics
  • Physical Review D
The question of whether information is lost in black holes is investigated using Euclidean path integrals. The formation and evaporation of black holes is regarded as a scattering problem with all measurements being made at infinity. This seems to be well formulated only in asymptotically AdS spacetimes. The path integral over metrics with trivial topology is unitary and information preserving. On the other hand, the path integral over metrics with non-trivial topologies leads to correlation… 

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