Logarithmic corrections to extremal black hole entropy from quantum entropy function
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Publication:475852
DOI10.1007/JHEP03(2011)147zbMATH Open1301.81182arXiv1005.3044WikidataQ59266458 ScholiaQ59266458MaRDI QIDQ475852
Author name not available (Why is that?)
Publication date: 27 November 2014
Published in: (Search for Journal in Brave)
Abstract: We evaluate the one loop determinant of matter multiplet fields of N=4 supergravity in the near horizon geometry of quarter BPS black holes, and use it to calculate logarithmic corrections to the entropy of these black holes using the quantum entropy function formalism. We show that even though individual fields give non-vanishing logarithmic contribution to the entropy, the net contribution from all the fields in the matter multiplet vanishes. Thus logarithmic corrections to the entropy of quarter BPS black holes, if present, must be independent of the number of matter multiplet fields in the theory. This is consistent with the microscopic results. During our analysis we also determine the complete spectrum of small fluctuations of matter multiplet fields in the near horizon geometry.
Full work available at URL: https://arxiv.org/abs/1005.3044
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