منابع مشابه
Microscopic Origin of the Bekenstein-Hawking Entropy
The Bekenstein-Hawking area-entropy relation SBH = A/4 is derived for a class of five-dimensional extremal black holes in string theory by counting the degeneracy of BPS soliton bound states.
متن کاملLogarithmic correction to the bekenstein-hawking entropy
The exact formula derived by us earlier for the entropy of a four dimensional nonrotating black hole within the quantum geometry formulation of the event horizon in terms of boundary states of a three dimensional Chern-Simons theory is reexamined for large horizon areas. In addition to the semiclassical Bekenstein-Hawking contribution proportional to the area obtained earlier, we find a contrib...
متن کاملExtremal Black Holes in Supergravity and the Bekenstein-Hawking Entropy
We review some results on the connection among supergravity central charges, BPS states and Bekenstein{Hawking entropy. In particular, N = 2 supergravity in four dimensions is studied in detail. For higher N supergravities we just give an account of the general theory specializing the discussion to the N = 8 case when one half of supersymmetry is preserved. We stress the fact that for extremal ...
متن کاملCorrections to Bekenstein-Hawking Entropy - Quantum or not-so Quantum?
Hawking radiation and Bekenstein-Hawking entropy are the two robust predictions of a yet unknown quantum theory of gravity. Any theory which fails to reproduce these predictions is certainly incorrect. While several approaches lead to Bekenstein-Hawking entropy, they all lead to different sub-leading corrections. In this article, we ask a question that is relevant for any approach: Using simple...
متن کاملThe Bekenstein-Hawking Entropy of Higher-Dimensional Rotating Black Holes
A black hole can be regarded as a thermodynamic system described by a grand canonical ensemble. In this paper, we study the Bekenstein-Hawking entropy of higherdimensional rotating black holes using the Euclidean path-integral method of Gibbons and Hawking. We give a general proof demonstrating that ignoring quantum corrections, the Bekenstein-Hawking entropy is equal to one-fourth of its horiz...
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ژورنال
عنوان ژورنال: Scholarpedia
سال: 2008
ISSN: 1941-6016
DOI: 10.4249/scholarpedia.7375