Quantum Information Cannot Be Completely Hidden in Correlations: Implications for the Black-Hole Information Paradox
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.
- Publication:
-
Physical Review Letters
- Pub Date:
- February 2007
- DOI:
- 10.1103/PhysRevLett.98.080502
- arXiv:
- arXiv:gr-qc/0603046
- Bibcode:
- 2007PhRvL..98h0502B
- Keywords:
-
- 03.67.-a;
- 04.70.Dy;
- 05.70.Ln;
- Quantum information;
- Quantum aspects of black holes evaporation thermodynamics;
- Nonequilibrium and irreversible thermodynamics;
- General Relativity and Quantum Cosmology
- E-Print:
- We first obtained this result two years ago