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Black Hole Remnants and the Information Puzzle

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arxiv hep-th/9211030 v2 pith:2BBPHXYO submitted 1992-11-05 hep-th

T. Banks , M. O'Loughlin , A. Strominger This is my paper · ORCID
classification hep-th
keywords blackinfinitestatesdegeneracyfieldholeholesinformation
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Magnetically charged dilatonic black holes have a perturbatively infinite ground state degeneracy associated with an infinite volume throat region of the geometry. A simple argument based on causality is given that these states do not have a description as ordinary massive particles in a low-energy effective field theory. Pair production of magnetic black holes in a weak magnetic field is estimated in a weakly-coupled semiclassical expansion about an instanton and found to be finite, despite the infinite degeneracy of states. This suggests that these states may store the information apparently lost in black hole scattering processes.

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  1. Macroscopic Black-Hole Remnants in a Nonlocal Field Theory: Towards Hawking Radiation in SFT

    hep-th 2026-06 unverdicted novelty 6.0 of 10

    In a smeared massless scalar on dynamical black hole, outgoing particle number drops to zero after scrambling time due to SFT nonlocality, implying macroscopic remnant.

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