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Author Topic: Do micro black holes exist?  (Read 924 times)

Offline jeffreyH

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Do micro black holes exist?
« on: 08/11/2015 19:02:36 »
I have thought this for a while now. I doubt if anyone will take notice. However I did find this.

https://en.wikipedia.org/wiki/Micro_black_hole
"All this assumes that the theory of general relativity remains valid at these small distances. If it does not, then other, presently unknown, effects will limit the minimum size of a black hole. Elementary particles are equipped with a quantum-mechanical, intrinsic angular momentum (spin). The correct conservation law for the total (orbital plus spin) angular momentum of matter in curved spacetime requires that spacetime is equipped with torsion. The simplest and most natural theory of gravity with torsion is the Einstein-Cartan theory. Torsion modifies the Dirac equation in the presence of the gravitational field and causes fermion particles to be spatially extended. The spatial extension of fermions limits the minimum mass of a black hole to be on the order of 1016 kg, showing that mini black holes may not exist. The energy necessary to produce such a black hole is 39 orders of magnitude greater than the energies available at the LHC, indicating that the LHC cannot produce mini black holes. But if black holes are produced, then the theory of general relativity is proven wrong and does not exist at these small distances. The rules of general relativity would be broken, as is consistent with theories of how matter, space, and time break down around the event horizon of a black hole. This would prove the spatial extensions of the fermions limits incorrect as well. The fermion limits assumes a minimum mass needed to sustain a black hole, as opposed to the opposite, the minimum mass needed to start a black hole, which in theory is achievable in the LHC."
« Last Edit: 21/11/2015 15:05:34 by chris »


 

Offline jeffreyH

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Re: Could micro black holes just not exist?
« Reply #1 on: 08/11/2015 19:48:26 »
To initially counter my own argument it can be stated that Hawking radiation will ultimately lead to a Planck mass sized black hole. This suggests that Planck mass black holes can exist. However this does not necessarily mean that they can be created at that size. Just that they could end up that way. I may be wrong. If these are stable and can undergo no further evaporation then these may be the WIMPS of dark matter.
 

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Re: Could micro black holes just not exist?
« Reply #1 on: 08/11/2015 19:48:26 »

 

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