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| Format: | Preprint |
| Publié: |
2024
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| Accès en ligne: | https://arxiv.org/abs/2411.19924 |
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| _version_ | 1866929608967847936 |
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| author | Leung, Henry |
| author_facet | Leung, Henry |
| contents | Bulk cone singularities are singularities in boundary two-point functions at points separated by a null geodesic in the bulk, but not in the boundary. In this work, we describe a new type of bulk cone singularities in a family of Vaidya-like spacetimes that are labeled by the radius $r_+$ of the resulting black hole. We find a sharp transition in the causal structure within this family of spacetimes at $r_+=l$, the AdS length. In particular, there are bulk cone singularities that do not exist in the $r_+>l$ case, but appear for $r_+<l$. In the case of $r_+<l$ where such singularities exist, we are able to reproduce the singularities in a CFT$_2$ calculation using large $c$ conformal blocks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_19924 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | New bulk cone singularities in Vaidya-like spacetimes from large $c$ conformal blocks Leung, Henry High Energy Physics - Theory General Relativity and Quantum Cosmology Bulk cone singularities are singularities in boundary two-point functions at points separated by a null geodesic in the bulk, but not in the boundary. In this work, we describe a new type of bulk cone singularities in a family of Vaidya-like spacetimes that are labeled by the radius $r_+$ of the resulting black hole. We find a sharp transition in the causal structure within this family of spacetimes at $r_+=l$, the AdS length. In particular, there are bulk cone singularities that do not exist in the $r_+>l$ case, but appear for $r_+<l$. In the case of $r_+<l$ where such singularities exist, we are able to reproduce the singularities in a CFT$_2$ calculation using large $c$ conformal blocks. |
| title | New bulk cone singularities in Vaidya-like spacetimes from large $c$ conformal blocks |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2411.19924 |