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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Acceso en línea: | https://arxiv.org/abs/2508.01683 |
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| _version_ | 1866918112473907200 |
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| author | Fatima, Urooj Abbas, G. |
| author_facet | Fatima, Urooj Abbas, G. |
| contents | We explore the extraction of energy from a rotating black hole spacetime modified by a quantum correction parameter \( α\). Focusing on particle splitting within the ergoregion, we analyze the Penrose process and compute the extraction efficiency \( η\) as a function of both the spin parameter \( a \) and the quantum correction parameter \( α\). Our results show that increasing \( α\) induces an inward shift of the event horizon and the static limit, resulting in a modest expansion of the ergoregion. This geometric change significantly enhances the energy extraction potential. By numerically solving the horizon equation, we determine a maximum extraction efficiency of 11.64\%. Additionally, we derive the expression for the irreducible mass, highlighting its fundamental role in constraining the amount of extractable rotational energy. Overall, our findings demonstrate that quantum corrections have a substantial impact on black hole energetics, leading to marked deviations from predictions based on classical Kerr theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_01683 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Revisiting the Penrose Process in Rotating Black Holes with Quantum Corrections: Implications for Energy Extraction and Irreducible Mass Fatima, Urooj Abbas, G. General Relativity and Quantum Cosmology High Energy Physics - Theory We explore the extraction of energy from a rotating black hole spacetime modified by a quantum correction parameter \( α\). Focusing on particle splitting within the ergoregion, we analyze the Penrose process and compute the extraction efficiency \( η\) as a function of both the spin parameter \( a \) and the quantum correction parameter \( α\). Our results show that increasing \( α\) induces an inward shift of the event horizon and the static limit, resulting in a modest expansion of the ergoregion. This geometric change significantly enhances the energy extraction potential. By numerically solving the horizon equation, we determine a maximum extraction efficiency of 11.64\%. Additionally, we derive the expression for the irreducible mass, highlighting its fundamental role in constraining the amount of extractable rotational energy. Overall, our findings demonstrate that quantum corrections have a substantial impact on black hole energetics, leading to marked deviations from predictions based on classical Kerr theory. |
| title | Revisiting the Penrose Process in Rotating Black Holes with Quantum Corrections: Implications for Energy Extraction and Irreducible Mass |
| topic | General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2508.01683 |