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Why Our Universe Must Have Been Born Inside a Black Hole

Wow! As someone who is very interested in Quantum Physics and theoretical physics, I found this very interesting. I thought you might as well. NOTE: You don’t need to be a physicist to dig this.

-DF


Why Our Universe Must Have Been Born Inside a Black Hole

Source: the physics arXiv blog — July 13, 2010

A small change to the theory of gravity implies that our universe inherited its arrow of time from the black hole in which it was born. “Accordingly, our own Universe may be the interior of a black hole existing in another universe.” So concludes Nikodem Poplawski at Indiana University in a remarkable paper about the nature of space and the origin of time.

The idea that new universes can be created inside black holes and that our own may have originated in this way has been the raw fodder of science fiction for many years. But a proper scientific derivation of the notion has never emerged.

Today Poplawski provides such a derivation. He says the idea that black holes are the cosmic mothers of new universes is a natural consequence of a simple new assumption about the nature of spacetime.

Poplawski points out that the standard derivation of general relativity takes no account of the intrinsic momentum of spin half particles. However there is another version of the theory, called the Einstein-Cartan-Kibble-Sciama theory of gravity, which does.

This predicts that particles with half integer spin should interact, generating a tiny repulsive force called torsion. In ordinary circumstances, torsion is too small to have any effect. But when densities become much higher than those in nuclear matter, it becomes significant. In particular, says Poplawski, torsion prevents the formation of singularities inside a black hole.

Ref: arxiv.org/abs/1007.0587: Cosmology With Torsion – An Alternative To Cosmic Inflation

Read the full article here

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Written by David Frederick

July 15, 2010 at 3:52 PM

Posted in Physcis

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