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

Gia Dvali, Alexander Gußmann

    Research output: Contribution to journalArticle

    Abstract

    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.

    Original languageEnglish (US)
    Pages (from-to)274-279
    Number of pages6
    JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
    Volume768
    DOIs
    StatePublished - May 10 2017

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    hair
    baryons
    astrophysics
    phase shift
    strings
    probes

    Keywords

    • Aharonov–Bohm effect
    • Black hole
    • Black hole hair
    • Skyrmion

    ASJC Scopus subject areas

    • Nuclear and High Energy Physics

    Cite this

    Aharonov–Bohm protection of black hole's baryon/skyrmion hair. / Dvali, Gia; Gußmann, Alexander.

    In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 768, 10.05.2017, p. 274-279.

    Research output: Contribution to journalArticle

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