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Central charges, black-hole entropy and geometrical structure of N–extended supergravities in D = 4

✍ Scribed by Laura Andrianopoli; Laura Andrianopoli

Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 186 KB
Volume: 47
Category: Article
ISSN: 0015-8208
DOI: 10.1002/(sici)1521-3978(199901)47:1/3<101::aid-prop101>3.0.co;2-n

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✦ Synopsis

The derivation of absolute (moduli-independent) U-invariants for all N > 2 extended supergravities at D = 4 in terms of (moduli-dependent) central and matter charges is reported. These invariants give a general denition of the \topological" Bekenstein{Hawking entropy formula for extremal black-holes and reduce to the square of the black-hole ADM mass for \xed scalars" which extremize the black-hole \potential" energy.

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