Quantum information cannot be completely hidden in correlations: implications for the black-hole information paradox |
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Authors: | Braunstein Samuel L Pati Arun K |
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Institution: | Computer Science, University of York, York YO10 5DD, United Kingdom. |
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Abstract: | Can quantum-information theory shed light on black-hole evaporation? By entangling the in-fallen matter with an external system we show that the black-hole information paradox becomes more severe, even for cosmologically sized black holes. We rule out the possibility that the information about the in-fallen matter might hide in correlations between the Hawking radiation and the internal states of the black hole. As a consequence, either unitarity or Hawking's semiclassical predictions must break down. Any resolution of the black-hole information crisis must elucidate one of these possibilities. |
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