Universal p-form black holes in generalized theories of gravity
| Autor: | Sigbjørn Hervik, Marcello Ortaggio |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Large class
High Energy Physics - Theory Physics and Astronomy (miscellaneous) Scalar (mathematics) FOS: Physical sciences lcsh:Astrophysics General Relativity and Quantum Cosmology (gr-qc) Computer Science::Digital Libraries General Relativity and Quantum Cosmology Theoretical physics fysikk lcsh:QB460-466 Matematikk og Naturvitenskap: 400::Fysikk: 430::Astrofysikk astronomi: 438 [VDP] lcsh:Nuclear and particle physics. Atomic energy. Radioactivity Engineering (miscellaneous) Ansatz Physics Base space Constant curvature Spacetime geometry Black hole High Energy Physics - Theory (hep-th) Homogeneous lcsh:QC770-798 svarte hull |
| Zdroj: | European Physical Journal C: Particles and Fields, Vol 80, Iss 11, Pp 1-10 (2020) European Physical Journal European Physical Journal C |
| ISSN: | 1434-6052 1434-6044 |
| Popis: | We explore how far one can go in constructing $d$-dimensional static black holes coupled to $p$-form and scalar fields before actually specifying the gravity and electrodynamics theory one wants to solve. At the same time, we study to what extent one can enlarge the space of black hole solutions by allowing for horizon geometries more general than spaces of constant curvature. We prove that a generalized Schwarzschild-like ansatz with an arbitrary isotropy-irreducible homogeneous base space (IHS) provides an answer to both questions, up to naturally adapting the gauge fields to the spacetime geometry. In particular, an IHS-K\"ahler base space enables one to construct magnetic and dyonic 2-form solutions in a large class of theories, including non-minimally couplings. We exemplify our results by constructing simple solutions to particular theories such as $R^2$, Gauss-Bonnet and (a sector of) Einstein-Horndeski gravity coupled to certain $p$-form and conformally invariant electrodynamics. Comment: 15 pages. v2: typos fixed, minor improvements to the text, refs. added |
| Databáze: | OpenAIRE |
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