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Title: Black hole solutions in mimetic Born-Infeld gravity

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. Here, 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.
Authors:
 [1] ;  [2] ;  [3]
  1. National Taiwan Univ., Taipei (Taiwan). Dept. of Physics and Center for Theoretical Sciences; National Taiwan Univ., Taipei (Taiwan). LeCosPA
  2. Univ. of the Basque Country, Bilbao (Spain). Dept. of Theoretical Physics; Ikerbasque, the Basque Foundation for Science, Bilbao (Spain)
  3. National Taiwan Univ., Taipei (Taiwan). Dept. of Physics and Center for Theoretical Sciences; National Taiwan Univ., Taipei (Taiwan). LeCosPA; SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States). Kavli Inst. for Particle Astrophysics and Cosmology
Publication Date:
Grant/Contract Number:
AC02-76SF00515; FIS2014-57956-P; IT956-16; AC03-76SF00515
Type:
Published Article
Journal Name:
European Physical Journal. C, Particles and Fields
Additional Journal Information:
Journal Volume: 78; Journal Issue: 1; Journal ID: ISSN 1434-6044
Publisher:
Springer
Research Org:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org:
USDOE; Basque government; Spanish government; Taiwan National Science Council
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS
OSTI Identifier:
1417783
Alternate Identifier(s):
OSTI ID: 1425582