A stringy cloak for a classical singularity

Dabholkar, Atish ; Kallosh, Renata ; Maloney, Alexander (2005) A stringy cloak for a classical singularity Journal of High Energy Physics, 2004 (12). 059_1-059_10. ISSN 1126-6708

PDF - Publisher Version

Official URL: http://iopscience.iop.org/1126-6708/2004/12/059

Related URL: http://dx.doi.org/10.1088/1126-6708/2004/12/059


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.

Item Type:Article
Source:Copyright of this article belongs to Institute of Physics Publishing.
Keywords:Black Holes; Supergravity Models; Black Holes in String Theory
ID Code:8144
Deposited On:26 Oct 2010 05:57
Last Modified:16 May 2016 18:12

Repository Staff Only: item control page