Super-Penrose process for nonextremal black holes

O. B. Zaslavskii

Super-Penrose process for nonextremal black holes

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arxiv 2103.02322 v2 pith:HZCBGKF6 submitted 2021-03-03 gr-qc astro-ph.HEhep-th

O. B. Zaslavskii This is my paper · ORCID

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keywords blackholesbackgroundnonextremalprocesssuper-penrosealreadycentral

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We consider particle collisions in the background of nonextremal spherically symmetric static black holes. It is shown that debris of collision can have indefinitely large energy at infinity, i.e. the super-Penrose process (SPP) can occur. This property is sharply contrasted with that of rotating black holes for which it is already established that the SPP is forbidden. The Reissner-Nordstrom black hole serves as an example. If an external central force exerts on particles, even the Schwarzschild background is suitable for the SPP.

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Penrose and super-Penrose energy extraction from a Reissner-Nordstr\"om black hole spacetime with a cosmological constant through the BSW mechanism: Full story
gr-qc 2024-11 conditional novelty 6.0 of 10

For extremal charged black holes in any dimension and with any cosmological constant, a fine-tuned near-horizon particle collision can eject a particle carrying arbitrarily large, though finite, energy.

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