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On Some Information-Geometric Aspects of Hawking Radiation as Tunneling

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Abstract

This paper illustrates the resemblance between the information-geometric structures of probability spaces and that of the discrete spectrum for Hawking radiation. The information geometry gives rise to a reconstruction of the standard formalism of quantum mechanics, while the discrete spectrum of Hawking radiation contributes to the semiclassical unitary evolution of Hawking radiation. If more realistic models of Hawking radiation are chosen, the information-geometric structures of the probability space for Hawking radiation can be constructed from some physical considerations. The constructed quantum formalism is consistent with both the unitary evolution of Hawking radiation in the semiclassical picture and the topology change of fuzzy horizons. These aspects of Hawking radiation can be connected to some general convictions of quantum gravity such as holography. A comparison with the fuzzball proposal shows the limiation and effectiveness of this construction. We conclude that these information-geometric aspects show some possible ways bridging the gap between semiclassical models and quantum gravity.

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Acknowledgments

The author thanks Zhiqiang Huang for helpful discussions.

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Authors and Affiliations

  1. Center for Astrophysics, Shanghai Normal University, Shanghai, 200234, China

    Xiao-Kan Guo

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  1. Xiao-Kan Guo
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Correspondence to Xiao-Kan Guo.

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Guo, XK. On Some Information-Geometric Aspects of Hawking Radiation as Tunneling. Int J Theor Phys 54, 3699–3709 (2015). https://doi.org/10.1007/s10773-015-2606-2

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  • DOI: https://doi.org/10.1007/s10773-015-2606-2

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