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The quantum gravitational black hole is neither black nor white | | T. P. Singh
; Cenalo Vaz
; | | Date: |
17 May 2004 | | Journal: | Int.J.Mod.Phys. D13 (2004) 2369-2373 | | Subject: | gr-qc hep-th | | 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. | | Source: | arXiv, gr-qc/0405087 | | Services: | Forum | Review | PDF | Favorites | |
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