@Article{Olmo+Rubiera-Garcia2012,
author="Olmo, G. J.
and Rubiera-Garcia, D.",
title="Nonsingular black holes in quadratic Palatini gravity",
journal="European Physical Journal C",
year="2012",
publisher="Springer",
volume="72",
number="8",
pages="2098--5pp",
abstract="We find that if general relativity is modified at the Planck scale by a Ricci-squared term, electrically charged black holes may be nonsingular. These objects concentrate their mass in a microscopic sphere of radius r(core) approximate to N(q)(1/2)l(P)/3, where l(P) is the Planck length and N-q is the number of electric charges. The singularity is avoided if the mass of the object satisfies the condition M-0(2) approximate to m(P)(2)alpha N-3/2(em)q(3)/2, where m(P) is the Planck mass and alpha(em) is the fine-structure constant. For astrophysical black holes this amount of charge is so small that their external horizon almost coincides with their Schwarzschild radius. We work within a first-order (Palatini) approach.",
optnote="WOS:000308239900030",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1138), last updated on Thu, 27 Sep 2012 11:06:14 +0000",
issn="1434-6044",
doi="10.1140/epjc/s10052-012-2098-7",
opturl="http://arxiv.org/abs/1112.0475",
opturl="https://doi.org/10.1140/epjc/s10052-012-2098-7",
archivePrefix="arXiv",
eprint="1112.0475",
language="English"
}