Can black holes hold the key to the origin of our universe?

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SUMMARY

The discussion centers on Nikodem J. Poplawski's paper (arXiv:1410.3881) which posits that black holes, influenced by spin and torsion, may be the origin of our universe. The paper argues that the torsion tensor's role in the conservation of angular momentum in curved spacetime prevents singularities in black holes, leading to the formation of a nonsingular universe beyond the event horizon. This model suggests that quantum particle production could trigger exponential expansion, resulting in the creation of matter and potentially linking our universe's origin to another universe's black hole.

PREREQUISITES
  • Understanding of General Relativity and Quantum Cosmology
  • Familiarity with the concepts of spin and torsion in physics
  • Knowledge of black hole physics and singularity avoidance
  • Basic principles of quantum particle production and cosmological expansion
NEXT STEPS
  • Research the implications of torsion in General Relativity
  • Explore the concept of nonsingular black holes and their properties
  • Study quantum particle production mechanisms in cosmological contexts
  • Investigate alternative theories of the universe's origin, such as the big bounce
USEFUL FOR

Astronomers, theoretical physicists, cosmologists, and anyone interested in the intersection of black hole physics and the origins of the universe.

wolram
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arXiv:1410.3881 (cross-list from gr-qc) [pdf, ps, other]
Universe in a black hole with spin and torsion
Nikodem J. Poplawski
Comments: 10 pages
Subjects: General Relativity and Quantum Cosmology (gr-qc); Cosmology and Nongalactic Astrophysics (astro-ph.CO); High Energy Physics - Theory (hep-th)
The conservation law for the angular momentum in curved spacetime requires that the antisymmetric part of the affine connection (the torsion tensor) is a variable in the principle of least action. The coupling between spin and torsion generates gravitational repulsion in fermionic matter at extremely high densities and avoids the formation of singularities in black holes. We show that every black hole in the presence of torsion forms a nonsingular, closed, nearly flat, homogeneous, and isotropic universe on the other side of its event horizon. Quantum particle production in such a universe can generate a period of exponential expansion which creates an enormous amount of matter in that universe. Accordingly, our Universe may have originated from the interior of a black hole existing in another universe.

I thought the big bounce origin of our universe was disfavored, what do you think?
 
Space news on Phys.org
This is not the first idea by Poplawski that was 'out there'.
 

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