Quantum censors: Backreaction builds horizons
Cosmic censorship posits that 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-classic...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2025 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositório: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:dnet:digitalcsic_::ff1699fc5d8f5056fc3109a154fd8afd |
| Acesso em linha: | http://hdl.handle.net/10261/429219 https://www.scopus.com/pages/publications/105017454939?origin=resultslist |
| Access Level: | Acceso aberto |
| Palavra-chave: | Cosmic censorship holography quantum black holes semi-classical gravity |
| Resumo: | Cosmic censorship posits that 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. By 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 evidence suggests that cosmic censorship is robust, even nonperturbatively, in semi-classical gravity. © 2025 World Scientific Publishing Company. |
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