Repetitive Penrose Process in Kerr-Taub-NUT black hole spacetime
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866908915822755840 |
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| author | Alloqulov, Mirzabek Ahmedov, Bobomurat Yuan, Chengxun |
| author_facet | Alloqulov, Mirzabek Ahmedov, Bobomurat Yuan, Chengxun |
| contents | In this article, we study the repetitive Penrose process for the Kerr-Taub-NUT black hole (BH). First of all, we briefly review the spacetime of the Kerr-Taub-NUT BH, including horizon and ergosphere structures. The results indicate that the event horizon and ergosphere radii increase under the influence of the gravitomagnetic charge $l$. Subsequently, we find by using the irreducible mass of the BH that the extractable energy decreases with the rise of the gravitomagnetic charge. We then turn to the repetitive Penrose process by writing the conservation laws and setting the corresponding iterative stopping conditions. Furthermore, we numerically calculate the change in the BH's parameters, along with the corresponding quantities of the repetitive Penrose process, for each iteration. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_25630 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Repetitive Penrose Process in Kerr-Taub-NUT black hole spacetime Alloqulov, Mirzabek Ahmedov, Bobomurat Yuan, Chengxun General Relativity and Quantum Cosmology In this article, we study the repetitive Penrose process for the Kerr-Taub-NUT black hole (BH). First of all, we briefly review the spacetime of the Kerr-Taub-NUT BH, including horizon and ergosphere structures. The results indicate that the event horizon and ergosphere radii increase under the influence of the gravitomagnetic charge $l$. Subsequently, we find by using the irreducible mass of the BH that the extractable energy decreases with the rise of the gravitomagnetic charge. We then turn to the repetitive Penrose process by writing the conservation laws and setting the corresponding iterative stopping conditions. Furthermore, we numerically calculate the change in the BH's parameters, along with the corresponding quantities of the repetitive Penrose process, for each iteration. |
| title | Repetitive Penrose Process in Kerr-Taub-NUT black hole spacetime |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2603.25630 |