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String-corrected black holes.

Hubeny, V. and Maloney, A. and Rangamani, M. (2005) 'String-corrected black holes.', Journal of high energy physics., 05 . p. 35.

Abstract

We investigate the geometry of four dimensional black hole solutions in the presence of stringy higher curvature corrections to the low energy effective action. For certain supersymmetric two charge black holes these corrections drastically alter the causal structure of the solution, converting seemingly pathological null singularities into timelike singularities hidden behind a finite area horizon. We establish, analytically and numerically, that the string-corrected two-charge black hole metric has the same Penrose diagram as the extremal four-charge black hole. The higher derivative terms lead to another dramatic effect — the gravitational force exerted by a black hole on an inertial observer is no longer purely attractive! The magnitude of this effect is related to the size of the compactification manifold.

Item Type:Article
Keywords:Superstrings, Heterotic strings, Black holes, String theory.
Full text:Full text not available from this repository.
Publisher Web site:http://dx.doi.org/10.1088/1126-6708/2005/05/035
Record Created:26 Feb 2008
Last Modified:27 Nov 2009 10:18

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