When a single photon hits a screen - it leaves a dot; and many dots of other photons later - an interference pattern emerges.
My question is about size of a single dot.
What are key factors varying this size? Is there any equation for it?
I saw a video once, where it's been said that a size of a such single dot is directly depended on Uncertainty principle (or may be it was the Planck constant - I'm not sure; energy of a single photon might be involved I suppose as well), and now I just can't find it.
I saw it quite a long time ago, so it might be my perception\memory issue, especially since searching in Google didn't helped at all.