In the one hand, energy can be emitted\absorbed only by a discrete portions.
In the other hand - according to Coulomb law the higher distance - the lower force, because count of force lines per area decreases with distance. This fact always confused me: the problem is that it's difficult(or impossible) to compare classic explanation and quantum.
We have a frame where electron is fixed. In classic physics - it creates an electric field, in theory of fundamental interactions - it emits a virtual photon, plus we can know about it only if will interact with it. And I'm getting trouble, imagining how it occurs. I know that photon(especially virtual) doesn't have size because of 0 zero mass, as understand we can say, that it doesn't exist in the space at all. We can't even calculate possibility of finding the photon, because, as far as I understand $|\psi|^2$ for photon equals zero.
However, can You explain what will, or may happen in the situation described below