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Título

Black hole entropy quantization

Autor Corichi, Alejandro; Díaz-Polo, Jacobo ; Fernández Borja, Enrique
Palabras clave Quantum geometry
[PACS] Quantum aspects of black holes, evaporation, thermodynamics
[PACS] Loop quantum gravity, quantum geometry, spin foams
Fecha de publicación 4-may-2007
EditorAmerican Physical Society
Citación Physical Review Letters 98(18): 181301 (2007)
ResumenEver since the pioneering works of Bekenstein and Hawking, black hole entropy has been known to have a quantum origin. Furthermore, it has long been argued by Bekenstein that entropy should be quantized in discrete (equidistant) steps given its identification with horizon area in (semi-)classical general relativity and the properties of area as an adiabatic invariant. This lead to the suggestion that the black hole area should also be quantized in equidistant steps to account for the discrete black hole entropy. Here we shall show that loop quantum gravity, in which area is not quantized in equidistant steps, can nevertheless be consistent with Bekenstein's equidistant entropy proposal in a subtle way. For that we perform a detailed analysis of the number of microstates compatible with a given area and show consistency with the Bekenstein framework when an oscillatory behavior in the entropy-area relation is properly interpreted.
Descripción 4 pages, 4 figures.-- PACS nrs.: 04.70.Dy; 04.60.Pp.-- ISI Article Identifier: 000246210200013.-- ArXiv pre-print available at: http://arxiv.org/abs/gr-qc/0609122
Versión del editorhttp://dx.doi.org/10.1103/PhysRevLett.98.181301
URI http://hdl.handle.net/10261/9164
DOI10.1103/PhysRevLett.98.181301
ISSN0031-9007
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