Infinite-dimensional symmetries in plane wave spacetimes
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866917462675554304 |
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| author | Despontin, Emilie Detournay, Stéphane Fontaine, Dima |
| author_facet | Despontin, Emilie Detournay, Stéphane Fontaine, Dima |
| contents | We study the asymptotic symmetries of the Nappi-Witten spacetime in four dimensions, a plane wave arising as the Penrose limit of AdS$_2\times S^2$. Imposing suitable boundary conditions at large transverse distance, we uncover a new infinite-dimensional symmetry algebra allowing for non-trivial central extensions. The corresponding phase space encompasses the most general four-dimensional pp-wave metric, including in particular the Penrose limit of Kerr black holes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_12760 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Infinite-dimensional symmetries in plane wave spacetimes Despontin, Emilie Detournay, Stéphane Fontaine, Dima High Energy Physics - Theory We study the asymptotic symmetries of the Nappi-Witten spacetime in four dimensions, a plane wave arising as the Penrose limit of AdS$_2\times S^2$. Imposing suitable boundary conditions at large transverse distance, we uncover a new infinite-dimensional symmetry algebra allowing for non-trivial central extensions. The corresponding phase space encompasses the most general four-dimensional pp-wave metric, including in particular the Penrose limit of Kerr black holes. |
| title | Infinite-dimensional symmetries in plane wave spacetimes |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2508.12760 |