A Are these papers on Quantum Electrodynamics true?

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The discussion centers on the validity of claims regarding Kroll and Karplus in the context of Quantum Electrodynamics. It questions whether Feynman Diagram IIc has been published and whether Kroll and Karplus misled the scientific community. Critics of Kroll and Karplus are deemed largely invalid, with "Progress in Physics" identified as a predatory publisher attempting to imitate a reputable journal. The forum emphasizes that Vixra is not a reliable source for scientific references. The thread is closed, inviting professional references for potential reopening.
jonjacson
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TL;DR
Did Kroll & Karplus really lied to us?
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jonjacson said:
Summary:: Did Kroll & Karplus really lied to us?

Are these critics valid?
Probably not. Progress in Physics is most likely a predatory publisher. Very often predatory publishers choose journal names that are similar to respected journals.

In this case “Progress in Physics” is trying to masquerade as “Reports on Progress in Physics” which is a well-known journal that is indexed and has a decent impact factor.

“Progress in Physics”, in contrast, does not even show up on the Clarivate master journal list and has not even been given an impact factor. The low response and deceptive title are indicative of predatory publishers.

This thread is closed. If you find a professional scientific reference on this topic please send me a PM with the reference and I can reopen the thread.
 
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jonjacson said:
Summary:: Did Kroll & Karplus really lied to us?
……
https://vixra.org/abs/2002.0011
The forum rules explicitly disallow Vixra as a source. It’s that unreliable (or more precisely, reliably bad).
 
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For the quantum state ##|l,m\rangle= |2,0\rangle## the z-component of angular momentum is zero and ##|L^2|=6 \hbar^2##. According to uncertainty it is impossible to determine the values of ##L_x, L_y, L_z## simultaneously. However, we know that ##L_x## and ## L_y##, like ##L_z##, get the values ##(-2,-1,0,1,2) \hbar##. In other words, for the state ##|2,0\rangle## we have ##\vec{L}=(L_x, L_y,0)## with ##L_x## and ## L_y## one of the values ##(-2,-1,0,1,2) \hbar##. But none of these...

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