QED

But are there the tools available to understand the forces in just knowing what we know with QED with two charges?

QED is very, very powerful.

I found an example of how QED can solve a very simple problem, which can be easily solved with electrodynamics.

So let's make it infinitely more complicated with QED.

So I started with QED to explain Coulomb's Law, force of attraction, repulsion between two particles.

But in the context of QED, I found a book that actually did this.

But I saw the QED version of it and I said, oh, this is very helpful.

QED provides us a nice little solution.

QED says, well, thanks to quantum or Feynman and Schwinger, they are exchanging virtual particles.

QED, using QED to solve or to derive Coulomb's law is very complicated.

So quantum electrodynamics, QED doing Coulomb's law is a second order equation.

But the QED was kind of nice to show that.

But I thought maybe QED might.

So what happens in QED or time independent perturbation theory, you start from the zero

So you have, there's four kinds of photons in QED.

But in QED, you look at the vertices.

However, typically in QED, while momentum is conserved and you still have translational symmetry.

The first being, first of all, I mean, the scalar mode in QED is not physical.

So, you can't have a virtual radiation mode in QED.

No, I mean, I haven't done QED in 26 years.

viability in your mind with QED? Or is that something you have to kind of think about offline?

that is a fundamental property of charge. Fields. Which QED, I think, explains quite well. So,

like to use the QED, we haven't mentioned it much, but because of the alpha that shows up experimentally,