Palatini f(R) black holes in nonlinear electrodynamics

Olmo G.J.; Rubiera-Garcia D.

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Palatini f(R) black holes in nonlinear electrodynamics

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The electrically charged Born-Infeld black holes in the Palatini formalism for f(R) theories are analyzed. Specifically we study those supported by a theory f(R)=R±R2/R_P, where R P is Planck's curvature. These black holes only differ from their General Relativity counterparts very close to the center but may give rise to different geometrical structures in terms of inner horizons. The nature and strength of the central singularities are also significantly affected. In particular, for the model f(R)=R-R2/R _P the singularity is shifted to a finite radius, r_+, and the Kretschmann scalar diverges only as 1/(r-r_+)2.

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《Physical review, D. Particles, fields, gravitation, and cosmology》 |2011年第2期|124059-1-124059-14|共14页
作者
Olmo G.J.; Rubiera-Garcia D.;
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Departamento de Física, Universidad de Oviedo, Avenida Calvo Sotelo 18, 33007, Oviedo, Asturias, Spain;

Departamento de Física Teórica and IFIC, Centro Mixto Universidad de Valencia CSIC, Universidad de Valencia, Burjassot-46100, Valencia, Spain;

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正文语种英语
中图分类粒子物理学;
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Palatini f(R) black holes in nonlinear electrodynamics

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