Particle detectors under chronological hazard
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arXiv
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| Auteurs principaux: | , , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866913434891714560 |
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| author | Alonso-Serrano, Ana Tjoa, Erickson Garay, Luis J. Martín-Martínez, Eduardo |
| author_facet | Alonso-Serrano, Ana Tjoa, Erickson Garay, Luis J. Martín-Martínez, Eduardo |
| contents | We analyze how the presence of closed timelike curves (CTCs) characterizing a time machine can be discerned by placing a local particle detector in a region of spacetime which is causally disconnected from the CTCs. Our study shows that not only can the detector tell if there are CTCs, but also that the detector can separate topological from geometrical information and distinguish periodic spacetimes without CTCs (like the Einstein cylinder), curvature, and spacetimes with topological identifications that enable time-machines. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2402_17825 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Particle detectors under chronological hazard Alonso-Serrano, Ana Tjoa, Erickson Garay, Luis J. Martín-Martínez, Eduardo Quantum Physics General Relativity and Quantum Cosmology High Energy Physics - Theory We analyze how the presence of closed timelike curves (CTCs) characterizing a time machine can be discerned by placing a local particle detector in a region of spacetime which is causally disconnected from the CTCs. Our study shows that not only can the detector tell if there are CTCs, but also that the detector can separate topological from geometrical information and distinguish periodic spacetimes without CTCs (like the Einstein cylinder), curvature, and spacetimes with topological identifications that enable time-machines. |
| title | Particle detectors under chronological hazard |
| topic | Quantum Physics General Relativity and Quantum Cosmology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2402.17825 |