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arXiv · hep-th/9812082

Corrections to macroscopic supersymmetric black-hole entropy

Gabriel Lopes Cardoso·Bernard de Wit·Thomas Mohaupt
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Abstract

We determine the corrections to the entropy of extremal black holes arising from terms quadratic in the Riemann tensor in $N=2, D=4$ supergravity theories. We follow Wald's proposal to modify the Bekenstein-Hawking area law. The new entropy formula, whose value only depends on the electric/magnetic charges, is expressed in terms of a single holomorphic function and is consistent with electric-magnetic duality. For string effective field theories arising from Calabi-Yau compactifications, our result for the entropy of a certain class of extremal black-hole solutions fully agrees with the counting of microstates performed some time ago by Maldacena, Strominger, Witten and by Vafa.

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Gabriel Lopes Cardoso, Bernard de Wit, Thomas Mohaupt. 1999-06-15. Corrections to macroscopic supersymmetric black-hole entropy. https://doi.org/10.1016/s0370-2693(99)00227-0

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