Classical resolution of black hole singularities in arbitrary dimension
| Autor: | Bazeia, D., Losano, L., Olmo, Gonzalo J., Rubiera-Garcia, D., Sanchez-Puente, A. |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 92 (2015) 044018 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.92.044018 |
| Popis: | A metric-affine approach is employed to study higher-dimensional modified gravity theories involving different powers and contractions of the Ricci tensor. It is shown that the field equations are \emph{always} second-order, as opposed to the standard metric approach, where this is only achieved for Lagrangians of the Lovelock type. We point out that this property might have relevant implications for the AdS/CFT correspondence in black hole scenarios. We illustrate these aspects by considering the case of Born-Infeld gravity in $d$ dimensions, where we work out exact solutions for electrovacuum configurations. Our results put forward that black hole singularities in arbitrary dimensions can be cured in a purely classical geometric scenario governed by second-order field equations. Comment: 14 pages, 2 figures, to appear in PRD |
| Databáze: | arXiv |
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