Publikationsdatum:
2012-02-18
Beschreibung:
Logarithmic corrections to the extremal black hole entropy can be computed purely in terms of the low energy data—the spectrum of massless fields and their interaction. The demand of reproducing these corrections provides a strong constraint on any microscopic theory of quantum gravity that attempts to explain the black hole entropy. Using quantum entropy function formalism we compute logarithmic corrections to the entropy of half BPS black holes in N =2 supersymmetric string theories. Our results allow us to test various proposals for the measure in the OSV formula, and we find agreement with the measure proposed by Denef and Moore if we assume their result to be valid at weak topological string coupling. Our analysis also gives the logarithmic corrections to the entropy of extremal Reissner–Nordstrom black holes in ordinary Einstein–Maxwell theory. Content Type Journal Article Category Research Article Pages 1-60 DOI 10.1007/s10714-012-1336-5 Authors Ashoke Sen, Harish-Chandra Research Institute, Chhatnag Road, Jhusi, Allahabad, 211019 India Journal General Relativity and Gravitation Online ISSN 1572-9532 Print ISSN 0001-7701
Print ISSN:
0001-7701
Digitale ISSN:
1572-9532
Thema:
Physik
