PT Journal
AU Bazeia, D
   Losano, L
   Olmo, GJ
   Rubiera-Garcia, D
   Sanchez-Puente, A
TI Classical resolution of black hole singularities in arbitrary dimension
SO Physical Review D
JI Phys. Rev. D
PY 2015
BP 044018
EP 15pp
VL 92
IS 4
DI 10.1103/PhysRevD.92.044018
LA English
AB 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 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.
ER