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  Aharonov-Bohm protection of black hole's baryon/skyrmion hair

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Referee this paper: arXiv:1611.09370 by Gia Dvali, Alexander Gußmann

Please use comments to point to previous work in this direction, and reviews to referee the accuracy of the paper. Feel free to edit this submission to summarise the paper (just click on edit, your summary will then appear under the horizontal line)

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The baryon/skyrmion correspondence implies that the baryon number is encoded into a topological surface integral. Under certain conditions that we clarify, this surface integral can be measured by an asymptotic observer in form of an Aharonov-Bohm phase-shift in an experiment in which the skyrmion passes through a loop of a probe string. In such a setup the baryon/skyrmion number must be respected by black holes, despite the fact that it produces no long-range classical field. If initially swallowed by a black hole, the baryon number must resurface in form of a classical skyrmion hair, after the black hole evaporates below a certain critical size. Needless to say, the respect of the baryon number by black holes is expected to have potentially-interesting astrophysical consequences. 

requested Nov 30, 2016 by Prathyush (705 points)
summarized by Prathyush
paper authored Nov 28, 2016 to hep-th by  (no author on PO assigned yet) 
  • [ revision history ]
    edited Nov 30, 2016 by Prathyush

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