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arXiv · 0801.0032

Extremal dilatonic black holes in 4D Gauss-Bonnet gravity

Chiang-Mei Chen
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Abstract

This is a report of our recent investigation on the extremal dilatonic black holes in four dimensional Gauss-Bonnet gravity. We found that a global solution can exist only when the dilaton coupling is less than a critical value which can be determined numerically. Moreover, the black hole horizon is stretched by the Gauss-Bonnet correction and the entropy is twice the value given by Bekenstein-Hawking formula.

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Chiang-Mei Chen. 2007-12-29. Extremal dilatonic black holes in 4D Gauss-Bonnet gravity. https://doi.org/10.1143/ptps.172.161

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