Electrons are fired one by one in double slit-interference

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In summary, in the double slit-interference experiment, when electrons are fired one by one, they behave as waves and interfere with themselves, resulting in an interference pattern of multiple dots on the screen. This phenomenon is possible due to the wave-particle duality nature of matter, where quantum objects can behave as both particles and waves. However, this co-existence is only observed as long as there is no detector placed after the slits.
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blade_chong
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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?
 
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blade_chong said:
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?

The electron interferes with itself and so behaving as a wave, as long as you don't put any detector just after the slits.
 
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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!) :-)
 

1. How does the double slit-interference experiment work?

The double slit-interference experiment involves firing electrons one by one through two parallel slits onto a detection screen. The resulting pattern on the screen shows areas of high and low intensity, indicating the wave-like behavior of the electrons.

2. Why is it important to fire electrons one by one in this experiment?

Firing electrons one by one allows us to observe the interference pattern that results from the wave-like behavior of electrons. If they were fired all at once, the pattern would simply be a straight line, not demonstrating the wave-like behavior.

3. What causes the interference pattern in the double slit experiment?

The interference pattern is caused by the wave-like behavior of electrons. As they pass through the two slits, they diffract and interfere with each other, creating areas of high and low intensity on the detection screen.

4. How does the double slit-interference experiment support the wave-particle duality of electrons?

The double slit-interference experiment demonstrates that electrons can behave as both particles and waves. The single electron fired through the slits behaves as a wave, creating an interference pattern on the detection screen. However, when multiple electrons are fired, they behave as particles, each creating a distinct spot on the screen.

5. What other particles can be used in the double slit-interference experiment?

While electrons are commonly used in the double slit-interference experiment, other particles such as photons, atoms, and even molecules can also exhibit wave-like behavior and produce interference patterns. This experiment has been used to demonstrate the wave-particle duality of various particles.

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