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Hawking radiation and tunneling mechanism for a new class of black holes in Einstein–Gauss–Bonnet gravity

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Abstract

We study Hawking radiation in a new class of black hole solutions in Einstein–Gauss–Bonnet theory. The black hole has been argued to have vanishing mass and entropy, but finite Hawking temperature. To check if it really emits radiation, we analyze Hawking radiation using the original method of quantization of a scalar field in the black hole background and with the quantum tunneling method, and confirm that it emits radiation at the Hawking temperature. A general formula is derived for the Hawking temperature and backreaction in the tunneling approach. Physical implications of these results are discussed.

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Authors and Affiliations

  1. Department of Physics, Kinki University, Higashi-Osaka, Osaka, 577-8502, Japan

    Kenji Muneyuki & Nobuyoshi Ohta

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  1. Kenji Muneyuki
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  2. Nobuyoshi Ohta
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Correspondence to Nobuyoshi Ohta.

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Muneyuki, K., Ohta, N. Hawking radiation and tunneling mechanism for a new class of black holes in Einstein–Gauss–Bonnet gravity. Eur. Phys. J. C 72, 1858 (2012). https://doi.org/10.1140/epjc/s10052-012-1858-8

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  • DOI: https://doi.org/10.1140/epjc/s10052-012-1858-8

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