Something is rotten in the state of QED

Foundations of physics and/or philosophy of physics, and in particular, posts on unresolved or controversial issues

Re: Something is rotten in the state of QED

Postby Joy Christian » Thu Mar 26, 2020 12:06 am

Jarek wrote:Faber has repaired lacks of standard electromagnetism - of charge quantization (that Gauss law can only give integer charges) and charge having finite energy (point charge has infinite). There indeed remains some freedom of interpretation.
Do you? Claiming to have a model of nature, start with showing that it properly handle the best known interaction: electromagnetism.

Your mistake --- as Fred has been trying to explain to you but you wouldn't listen --- is to think that electromagnetism can be "repaired" in isolation from gravitational torsion. It cannot be.

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Re: Something is rotten in the state of QED

Postby Jarek » Thu Mar 26, 2020 12:43 am

Not true.
Faber model can be realized with just a vector field, with Higgs-like potential preferring unitary vectors e.g. V(u) = (|u|-1)^2.
Defining its curvature as dual F tensor with electric and magnetic field, Gauss-Bonnet theorem works as Gauss law, additionally having built in charge quantization - as topological charges.
We get finite energy of charge thanks to potential allowing to get to u=0 in the center of singularity - deforming EM into other interactions to prevent infinity.

Here is analogous in 2D, getting 1/r interaction:
Image

The question is how to interpret this vector field - you can use spacetime for that, but I prefer to see it as just a field in spacetime.
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Re: Something is rotten in the state of QED

Postby FrediFizzx » Thu Mar 26, 2020 10:02 am

Joy Christian wrote:
Jarek wrote:Faber has repaired lacks of standard electromagnetism - of charge quantization (that Gauss law can only give integer charges) and charge having finite energy (point charge has infinite). There indeed remains some freedom of interpretation.
Do you? Claiming to have a model of nature, start with showing that it properly handle the best known interaction: electromagnetism.

Your mistake --- as Fred has been trying to explain to you but you wouldn't listen --- is to think that electromagnetism can be "repaired" in isolation from gravitational torsion. It cannot be.

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Oh, I understand what he means by "repaired" now. Yeah, no problem with that since gravitational torsion provides a natural cutoff in the complete QED Lagrangian and counter balances the EM energy. Well, I think we have hijacked John's thread enough. Probably should start a new thread about this.
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Re: Something is rotten in the state of QED

Postby Jarek » Thu Mar 26, 2020 10:13 am

Higgs-like potential as above regularizes charges to finite energy without any artificial cutoffs (also leading to charge quantization due to minimum having nontrivial topology) - as in diagram above: electromagnetism deforms into other interactions in particles to prevent infinities.
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