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Energy Extraction from Higher Dimensional Black Holes and Black Rings

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arxiv hep-th/0502166 v1 pith:AMDXMYIK submitted 2005-02-18 hep-th gr-qc

Masato Nozawa , Kei-ichi Maeda This is my paper · ORCID
classification hep-thgr-qc
keywords blackhigherringsdimensionalenergyanalyzeefficiencyextraction
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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 than that in 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's one.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Energy Extraction from Loop Quantum Black Holes: The Role of Magnetic Penrose Process and Quantum Gravity Effects with Astrophysical Insights

    gr-qc 2024-12 conditional novelty 5.0 of 10

    In the rotating loop quantum black hole spacetime, the maximum magnetic Penrose process efficiency decreases with the quantum parameter epsilon, from 20.7% at epsilon=0 to about 19.3% at the maximal spin for epsilon=0.3.

  2. Superradiance -- the 2020 Edition

    gr-qc 2015-01 unverdicted novelty 4.0 of 10

    Black-hole superradiance extracts energy via the ergoregion and can trigger instabilities with applications to dark matter, beyond-Standard-Model physics, and laboratory analogs.

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