@Article{Bazeia_etal2017, author="Bazeia, D. and Losano, L. and Olmo, G. J. and Rubiera-Garcia, D.", title="Geodesically complete BTZ-type solutions of 2+1 Born-Infeld gravity", journal="Classical and Quantum Gravity", year="2017", publisher="Iop Publishing Ltd", volume="34", number="4", pages="045006--21pp", optkeywords="Born-Infeld gravity; BTZ; wormholes; nonsingular solutions; geodesic completeness", abstract="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.", optnote="WOS:000395398800002", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=3013), last updated on Fri, 07 Apr 2017 10:00:57 +0000", issn="0264-9381", doi="10.1088/1361-6382/aa56f5", opturl="http://arxiv.org/abs/1609.05827", opturl="https://doi.org/10.1088/1361-6382/aa56f5", archivePrefix="arXiv", eprint="1609.05827", language="English" }