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The bulk charge does not intrinsically produce a surface charge. Consider the case of a sphere with uniform charge density. In that case...

But do you at least have the electric field inside and outside the medium?

Don't worry Ballentine made it to the list.

Can you tell me what is the electric field inside the fluid and outside (at least an example)?

tl;dr summary: We will not here consider quantum field theory whatsoever. I suppose that's part of what orthodoxy requires: we can...

Im reading this on a phone so maybe I am missing something. But the electric field is different inside and outside the medium, the...

Beck, G. (2025). How to be an orthodox quantum mechanic. https://arxiv.org/abs/2504.20597 From the abstract: From the conclusion:

If it is infinite now then it HAD to be infinite at the time of the singularity because you can't get from finite to infinite The...

bhobba first brought up that paper in 2021. What WernerQH refers too was probably in August 2025. He also brought it up on other...

Was there a previous discussion on this paper?

There is a simple but general principle how to determine whether a statistical ensemble describes well a real single system. The...

A while ago @bhobba pointed to an interesting paper by T Padmanabhan: "Obtaining the Non-relativistic Quantum Mechanics from Quantum...

There might be some rigorous way to check, but the fact that we have many examples, makes it obvious that the two theories coincide at...

This question looks like if you were asking for why are particles spinning, do not confuse spin (intrinsic quantum property) with...

My bad, I meant differentiable.