Energy extraction from higher dimensional black holes and black rings

Masato Nozawa, Keiichi Maeda

    Research output: Contribution to journalArticle

    32 Citations (Scopus)

    Abstract

    We analyze the energy extraction by the Penrose process in higher dimensions. Our result shows the efficiency of the process from higher dimensional black holes and black rings can be rather high compared with that in the four-dimensional Kerr black hole. In particular, if one rotation parameter vanishes, the maximum efficiency becomes infinitely large because the angular momentum is not bounded from above. We also apply a catastrophe theory to analyze the stability of black rings. It indicates a branch of black rings with higher rotational energy is unstable, which should be a different type of instability from the Gregory-Laflamme one.

    Original languageEnglish
    Pages (from-to)1-12
    Number of pages12
    JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
    Volume71
    Issue number8
    DOIs
    Publication statusPublished - 2005 Apr 15

    Fingerprint

    Black Holes
    High-dimensional
    Ring
    rings
    Energy
    catastrophe theory
    Catastrophe theory
    Angular Momentum
    Higher Dimensions
    energy
    Vanish
    Branch
    angular momentum
    Unstable

    ASJC Scopus subject areas

    • Physics and Astronomy(all)
    • Nuclear and High Energy Physics
    • Mathematical Physics

    Cite this

    Energy extraction from higher dimensional black holes and black rings. / Nozawa, Masato; Maeda, Keiichi.

    In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 71, No. 8, 15.04.2005, p. 1-12.

    Research output: Contribution to journalArticle

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