%0 Journal Article
%T Geodesically complete BTZ-type solutions of 2+1 Born-Infeld gravity
%A Bazeia, D.
%A Losano, L.
%A Olmo, G. J.
%A Rubiera-Garcia, D.
%J Classical and Quantum Gravity
%D 2017
%V 34
%N 4
%I Iop Publishing Ltd
%@ 0264-9381
%G English
%F Bazeia_etal2017
%O WOS:000395398800002
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3013), last updated on Fri, 07 Apr 2017 10:00:57 +0000
%X We study Born-Infeld gravity coupled to a static, non-rotating electric field in 2 + 1 dimensions and find exact analytical solutions. Two families of such solutions represent geodesically complete, and hence nonsingular, spacetimes. Another family represents a point-like charge with a singularity at the center. Despite the absence of rotation, these solutions resemble the charged, rotating BTZ solution of general relativity but with a richer structure in terms of horizons. The nonsingular character of the first two families turn out to be attached to the emergence of a wormhole structure on their innermost region. This seems to be a generic prediction of extensions of general relativity formulated in metric-affine (or Palatini) spaces, where metric and connection are regarded as independent degrees of freedom.
%K Born-Infeld gravity
%K BTZ
%K wormholes
%K nonsingular solutions
%K geodesic completeness
%R 10.1088/1361-6382/aa56f5
%U http://arxiv.org/abs/1609.05827
%U https://doi.org/10.1088/1361-6382/aa56f5
%P 045006-21pp