2004/10/26 by Atish Dabholkar, Renata Kallosh, Alexander Maloney · 3 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Black hole thermodynamics #Cosmology and Gravitation Theories #Event horizon #Horizon #Membrane paradigm #Naked singularity #Noncommutative and Quantum Gravity Theories #Ring singularity #Singularity #String theory #gr-qc #hep-th
paper · pdf · doi:10.1088/1126-6708/2004/12/059
published as JHEP 0412:059,2004 · 10 pages
arxiv created 2004/10/26 · openalex publication_date 2004/12/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We consider a class of 4D supersymmetric black hole solutions, arising from string theory compactifications, which classically have vanishing horizon area and singular space-time geometry. String theory motivates the inclusion of higher derivative terms, which convert these singular classical solutions into regular black holes with finite horizon area. In particular, the supersymmetric attractor equations imply that the central charge, which determines the radius of the AdS2× S2 near horizon geometry, acquires a non-vanishing value due to quantum effects. In this case quantum corrections to the Bekenstein-Hawking relation between entropy and area are large. This is the first explicit example where stringy quantum gravity effects replace a classical null singularity by a black hole with finite horizon area.