A smooth road to bumpy horizons: shaping black holes with non-linear sigma models, from supergravity to higher dimensions
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866915835372634112 |
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| author | Canfora, Fabrizio Grandi, Nicolás Henríquez-Báez, Carla Oliva, Julio |
| author_facet | Canfora, Fabrizio Grandi, Nicolás Henríquez-Báez, Carla Oliva, Julio |
| contents | We construct new families of solutions for General Relativity coupled to a general class of non-linear sigma models, some of which can be embedded in supergravity. The solutions include neutral, charged and magnetized black holes with bumpy horizons, bumpy stars, and anisotropic cosmologies in $d\geq 4$ dimensions, as well as black strings and black $p$-branes. We also present a family of time-dependent solutions in $2+1$-dimensions. The construction relies on a set of first-order Bogomol'nyi-Prasad-Sommerfield relations for the coset scalars, that were recently exploited for the construction of bumpy black holes on the non-linear sigma model with homogenous target $SU(2)/U(1)$ in 2601.22914 [hep-th]. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_04611 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | A smooth road to bumpy horizons: shaping black holes with non-linear sigma models, from supergravity to higher dimensions Canfora, Fabrizio Grandi, Nicolás Henríquez-Báez, Carla Oliva, Julio High Energy Physics - Theory We construct new families of solutions for General Relativity coupled to a general class of non-linear sigma models, some of which can be embedded in supergravity. The solutions include neutral, charged and magnetized black holes with bumpy horizons, bumpy stars, and anisotropic cosmologies in $d\geq 4$ dimensions, as well as black strings and black $p$-branes. We also present a family of time-dependent solutions in $2+1$-dimensions. The construction relies on a set of first-order Bogomol'nyi-Prasad-Sommerfield relations for the coset scalars, that were recently exploited for the construction of bumpy black holes on the non-linear sigma model with homogenous target $SU(2)/U(1)$ in 2601.22914 [hep-th]. |
| title | A smooth road to bumpy horizons: shaping black holes with non-linear sigma models, from supergravity to higher dimensions |
| topic | High Energy Physics - Theory |
| url | https://arxiv.org/abs/2603.04611 |