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Particle creation by loop black holes

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Abstract

We study the black hole particle production in a regular spacetime metric obtained in a minisuperspace approach to loop quantum gravity. In different previous papers the static solution was obtained and shown to be singularity-free and self-dual. In this paper expanding a previous study of the black hole dynamics we repeat the Hawking analysis which leads to a thermal flux of particles at the future infinity. The evaporation time is infinite and the unitarity is recovered due to the regularity of the spacetime and to the characteristic behavior of the surface gravity.

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Acknowledgments

We wish to thank Thomas Thiemann and Alexander Stottmeister for many useful discussions. E. Alesci would like to thank the Perimeter Institute for Theoretical Physics, Waterloo, ON, Canada for the kind hospitality during a period of work on this project. Research at Perimeter Institute is supported by the Government of Canada through Industry Canada and by the Province of Ontario through the Ministry of Research & Innovation.

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  1. Institut für Theoretische Physik III, Lehrstuhl für Quantengravitation, Friedrich-Alexander-Universität Erlangen-Nürnberg, Staudtstrasse 7, 91058 , Erlangen, Germany

    Emanuele Alesci

  2. Perimeter Institute for Theoretical Physics, 31 Caroline St.N., Waterloo, ON , N2L 2Y5, Canada

    Leonardo Modesto

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  1. Emanuele Alesci
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  2. Leonardo Modesto
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Correspondence to Emanuele Alesci.

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Alesci, E., Modesto, L. Particle creation by loop black holes. Gen Relativ Gravit 46, 1656 (2014). https://doi.org/10.1007/s10714-013-1656-0

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