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Electrons are fired one by one in double slit-interference

  1. Dec 14, 2007 #1
    I have seen from demonstration in the internet that when elecrons are fired one by one in double slit-interference experiment, the resulting interference pattern is lots of dots on the interference screen. How is it possible for an electron to pass through 2 slits at the same time? Do this mean the electron will interfer with itself or the electron will behave as wave at the slit and particle at other point in the experiment? Is this the beauty of wave particle duality nature of matter?
  2. jcsd
  3. Dec 15, 2007 #2
    The electron interferes with itself and so behaving as a wave, as long as you don't put any detector just after the slits.
  4. Jan 5, 2008 #3
    There is a (common) view that the quantum object, when not localised as a particle, is expressed as a kind of wave, which can interfere with itself and which determines probabilities for the various possible states in which the particle might be observed. They think the object is manifest as either a particle or a wave but never both at once. But some have thought that there could be simultaneous particle and wave co-existence whereby the wave controls the particle in some way. (well that's what I think they think!) :-)
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