Magnetic reconnection enables higher energy extraction efficiency from singly-rotating five-dimensional Kerr black holes than from doubly-rotating ones and can exceed the Blandford-Znajek process in the single-rotation case.
Penrose Process in Kerr-Taub-NUT Spacetime
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abstract
Penrose process on rotational energy extraction of the black hole in the Kerr-Taub-NUT spacetime is studied. It has been shown that for the radial motion of particles NUT parameter slightly shifts the shape of the effective potential down. The dependence of the extracted energy from compact object on NUT parameter has been found.
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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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Magnetic reconnection in five-dimensional Kerr black hole
Magnetic reconnection enables higher energy extraction efficiency from singly-rotating five-dimensional Kerr black holes than from doubly-rotating ones and can exceed the Blandford-Znajek process in the single-rotation case.
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Superradiance -- the 2020 Edition
Black-hole superradiance extracts energy via the ergoregion and can trigger instabilities with applications to dark matter, beyond-Standard-Model physics, and laboratory analogs.