Quantum censors: backreaction builds horizons
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866912722761809920 |
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| author | Frassino, Antonia M. Hennigar, Robie A. Pedraza, Juan F. Svesko, Andrew |
| author_facet | Frassino, Antonia M. Hennigar, Robie A. Pedraza, Juan F. Svesko, Andrew |
| contents | Cosmic censorship posits spacetime singularities remain concealed behind event horizons, preserving the determinism of General Relativity. While quantum gravity is expected to resolve singularities, we argue that cosmic censorship remains necessary whenever spacetime has a reliable semi-classical description. Using holography to construct exact solutions to semi-classical gravity, we show backreaction of quantum matter generates horizons -- quantum censors -- to thwart potential violations of censorship. Along with a quantum Penrose inequality, this provides compelling evidence cosmic censorship is robust, even nonperturbatively, in semi-classical gravity. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_09689 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum censors: backreaction builds horizons Frassino, Antonia M. Hennigar, Robie A. Pedraza, Juan F. Svesko, Andrew High Energy Physics - Theory General Relativity and Quantum Cosmology History and Philosophy of Physics Cosmic censorship posits spacetime singularities remain concealed behind event horizons, preserving the determinism of General Relativity. While quantum gravity is expected to resolve singularities, we argue that cosmic censorship remains necessary whenever spacetime has a reliable semi-classical description. Using holography to construct exact solutions to semi-classical gravity, we show backreaction of quantum matter generates horizons -- quantum censors -- to thwart potential violations of censorship. Along with a quantum Penrose inequality, this provides compelling evidence cosmic censorship is robust, even nonperturbatively, in semi-classical gravity. |
| title | Quantum censors: backreaction builds horizons |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology History and Philosophy of Physics |
| url | https://arxiv.org/abs/2505.09689 |