Non-singular black holes with a zero-shear S-brane

• Main Authors: Robert Brandenberger, Lavinia Heisenberg, Jakob Robnik
• Format: Article
• Language: English
• Published: SpringerOpen 2021-05-01
• Series: Journal of High Energy Physics
• Subjects: Black Holes; Cosmology of Theories beyond the SM; Effective Field Theories
• Online Access: https://doi.org/10.1007/JHEP05(2021)090

Abstract We propose a construction with which to resolve the black hole singularity and enable an anisotropic cosmology to emerge from the inside of the hole. The model relies on the addition of an S-brane to the effective action which describes the geometry of space-time. This space-like defect is located inside of the horizon on a surface where the Weyl curvature reaches a limiting value. We study how metric fluctuations evolve from the outside of the black hole to the beginning of the cosmological phase to the future of the S-brane. Our setup addresses i) the black hole singularity problem, ii) the cosmological singularity problem and iii) the information loss paradox since the outgoing Hawking radiation is entangled with the state inside the black hole which becomes the new universe.