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Black hole entropy function, attractors and precision counting of microstates

2007/08/31 by Ashoke Sen · 481 citations
Mathematics · Physics and Astronomy · #Attractor #Binary entropy function #Black Holes and Theoretical Physics #Black hole thermodynamics #Cosmology and Gravitation Theories #Entropy (arrow of time) #Extremal black hole #Galaxies: Formation, Evolution, Phenomena #Mathematical analysis #Mathematical physics #Mathematics #Physics #Principle of maximum entropy #Quantum mechanics #Statistical physics #String theory #Theoretical physics #hep-th

paper · pdf · doi:10.1007/s10714-008-0626-4

published in General Relativity and Gravitation 40(11), 2249-2431 (Springer Science+Business Media) · LaTeX file, 196 pages, based on lectures given at various schools; v2: added appendix E containing analysis of the multiple D5-brane system, expanded discussion on duality orbits, other minor changes, references added; v3: equations (5.6.20) and (5.6.21) corrected; v4: minor corrections to equations (C.19), (C.20)

openalex publication_date 2008/04/11 · arxiv created 2009/11/05 · arxiv updated 2010/04/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

In these lecture notes we describe recent progress in our understanding of attractor mechanism and entropy of extremal black holes based on the entropy function formalism. We also describe precise computation of the microscopic degeneracy of a class of quarter BPS dyons in N=4 supersymmetric string theories, and compare the statistical entropy of these dyons, expanded in inverse powers of electric and magnetic charges, with a similar expansion of the corresponding black hole entropy. This comparison is extended to include the contribution to the entropy from multi-centered black holes as well.

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