3 ms·

How does an electron decide where to go in the dual hole experiment?

• loup-vaillant 7y ago
  Like the double slit experiment with a photon, or the semi-transparent mirror? Simple: it goes both ways. Then decoherence happens, the universe splits in half, and we experience being in either one of those halves. What we observe is but a glimpse of what actually happen. We don't have access to the other side (split universes don't communicate with each other, contrary to what much sci-fi material describes). That may sound weird, but the alternative (that half the amplitude is "not real", or that it "collapses" (in a way that is non-local, that is, exceeds the speed of light), is even weirder. Or you could just refuse to answer the question, and stick to "this equations mean I should observe this with those statistics".