Extremal Black Holes in Supergravity and the Bekenstein-Hawking Entropy

Extremal 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 super-gravity in four dimensions is studied in detail. For higher N supergravities we just give an account of the general theory specializing the discussion to...

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Bibliographic Details
Published in:Entropy (Basel, Switzerland) Vol. 4; no. 3; pp. 65 - 127
Main Authors: R. D'Auria, L. Andrianopoli
Format: Journal Article
Language:English
Published: MDPI AG 01-05-2002
Subjects:
black holes
BPS states
central charges
supergravity
Online Access:Get full text
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Summary:We review some results on the connection among supergravity central charges, BPS states and Bekenstein-Hawking entropy. In particular, N = 2 super-gravity 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 supergravity black holes the entropy formula is topological, that is the entropy turns out to be a moduli independent quantity and can be written in terms of invariants of the duality group of the supergravity theory.
ISSN:1099-4300
1099-4300
DOI:10.3390/e4030065