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- Title
THE QUANTUM GRAVITATIONAL BLACK HOLE IS NEITHER BLACK NOR WHITE.
- Authors
Singh, T. P.; Vaz, Cenalo
- Abstract
Understanding the end state of black hole evaporation, the microscopic origin of black hole entropy, the information loss paradox, and the nature of the singularity arising in gravitational collapse — these are outstanding challenges for any candidate quantum theory of gravity. Recently, a midisuperspace model of quantum gravitational collapse has been solved using a lattice regularization scheme. It is shown that the mass of an eternal black hole follows the Bekenstein spectrum, and a related argument provides a fairly accurate estimate of the entropy. The solution also describes a quantized mass–energy distribution around a central black hole, which in the WKB approximation, is precisely Hawking radiation. The leading quantum gravitational correction makes the spectrum non-thermal, thus providing a plausible resolution of the information loss problem.
- Subjects
GRAVITATIONAL fields; QUANTUM field theory; GRAVITATIONAL collapse; SUPERMASSIVE black holes; WHITE holes (Astronomy); SCHRODINGER equation; RELATIVITY (Physics); WAVE mechanics
- Publication
International Journal of Modern Physics D: Gravitation, Astrophysics & Cosmology, 2004, Vol 13, Issue 10, p2369
- ISSN
0218-2718
- Publication type
Article
- DOI
10.1142/S0218271804006504