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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© 1999 Springer-Verlag
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Cardoso, G.L. (1999). Corrections to macroscopic supersymmetric black-hole entropy. In: Ceresole, A., Kounnas, C., LĂĽst, D., Theisen, S. (eds) Quantum Aspects of Gauge Theories, Supersymmetry and Unification. Lecture Notes in Physics, vol 525. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0104274
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DOI: https://doi.org/10.1007/BFb0104274
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