Extremal Dilatonic Black Holes in 4D Gauss-Bonnet Gravity(VIII Asia-Pacific International Conference on Gravitation and Astrophysics (ICGA8))

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概要

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• This is a report of our recent investigation [C.- M. Chen, D. V. Gal'tsov and D. G. Orlov, Phys. Rev. D 75 (2007), 084030; arXiv : hep-th/0701004] 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.

• 2008-07-09

著者

• Chen Chiang-mei

  Department Of Physics And Center For Mathematics And Theoretical Physics National Central University

• CHEN Chiang-Mei

  Department of Physics and Center for Mathematics and Theoretical Physics, National Central University

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