Black hole solutions in mimetic Born-Infeld gravity

被引：32

作者：

Chen, Che-Yu ^{[1
,2
,3
]}

Bouhmadi-Lopez, Mariam ^{[4
,5
]}

Chen, Pisin ^{[1
,2
,3
,6
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[2] Natl Taiwan Univ, Ctr Theoret Sci, Taipei 10617, Taiwan

[3] Natl Taiwan Univ, LeCosPA, Taipei 10617, Taiwan

[4] Univ Basque Country UPV EHU, Dept Theoret Phys, POB 644, Bilbao 48080, Spain

[5] Basque Fdn Sci, Ikerbasque, Bilbao 48011, Spain

[6] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA

来源：

EUROPEAN PHYSICAL JOURNAL C | 2018年 / 78卷 / 01期

关键词：

SINGULARITIES;

D O I：

10.1140/epjc/s10052-018-5556-z

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The vacuum, static, and spherically symmetric solutions in the mimetic Born-Infeld gravity are studied. The mimetic Born-Infeld gravity is a reformulation of the Eddington-inspired-Born-Infeld (EiBI) model under the mimetic approach. Due to the mimetic field, the theory contains non-trivial vacuum solutions different from those in Einstein gravity. We find that with the existence of the mimetic field, the spacelike singularity inside a Schwarzschild black hole could be altered to a lightlike singularity, even though the curvature invariants still diverge at the singularity. Furthermore, in this case, the maximal proper time for a timelike radially-infalling observer to reach the singularity is found to be infinite.

引用

页数：9

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