Can Black Hole be Created at the Birth of the Universe?

Details Can Black Hole be Created at the Birth of the Universe? Can Black Hole be Created at the Birth of the Universe?

1999-12-10

arxiv.org/abs/gr-qc/9912046v1

Mod.Phys.Lett. A14 (1999) 2403-2408

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

honorary mention from Gravitation Research Foundation in 1999

Scientific paper

We study the quantum creation of black hole pairs in the (anti-)de Sitter space background. These black hole pairs in the Kerr-Newman family are created from constrained instantons. At the $WKB$ level, for the chargeless and nonrotating case, the relative creation probability is the exponential of (the negative of) the entropy of the universe. Also for the remaining cases of the family, the creation probability is the exponential of (the negative of) one quarter of the sum of the inner and outer black hole horizon areas. In the absence of a general no-boundary proposal for open universes, we treat the creations of the closed and the open universes in the same way.

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