Single electrons build up interference pattern

Youngs Physics experiment results ..
It was demonstrated that a two-beam interference experiment can be done in which only one electron exists at a time in the experimental apparatus and is detected one by one .
Feynman et al. remarked that such an experiment would be "impossible, absolutely impossible to explain in any classical way, and has in it the heart of quantum mechanics," and they went on to say that it "has never been done in just this way, because the apparatus would have to be made on an impossibly small scale."

However, such experiments can now be carried out with our field-emission electron microscope
.. the experiment was selected as the first rank of the most beautiful experiments by Physics World
Akira Tonomura , Advanced Research Lab , Hitachi .

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[coldarc]

there is no electrons strikes. what moves in an electron gun is platonic solids of atoms. the atoms create inference with other atoms trough a scattering of massless light as waves. platonic solids have shapes of triangles pentagon hexagon and so on. each side of a 3d triangle is a proton or a neutron. the electron is more like the mass of the whole atom. in other word subatomic particles are illusions of atomic behavior. light is messing with your head.

[maplebayou1]

@Thireus The fact that each electron strikes one and only one location, even though its wave function is spread out over a substantial area, is an example of "collapse." However, some physicists avoid using the term collapse. To illustrate how tricky this is, we could change the wave functions of these electrons, and therefore the distribution, by actions taken AFTER they have hit the monitor.

[Thireus]

Hello, thanks for this video, but where is the similar experiment with an observer that proves the wavefunction collapse ?

[maplebayou1]

@CHAS1422  I'm afraid you have me confused with someone else. I have not posted any videos. I urge you to carefully study quantum eraser experiments, including delayed choice experiments. Locality is dead, and no amount of arm-waving will resurrect it. Trying to invoke hidden variables only drives more nails into its coffin.

[CHAS1422]

@maplebayou1

It is a limitation of measurement that the composition of measuring devices is the same (i.e. atomic particles), as the objects we are trying to measure. It is also a limitation in that in detecting a small magnetic field we will influence it.

[CHAS1422]

@maplebayou1 I appreciate your video, it is very educational. I would still argue that an electron of low mass will easily sucomb to even minor field influences it might pass through. Has anyone ever measured the resolution of the diffraction pattern based on partical energy as it passed through the slots? Has anyone ever developed a diffraction pattern of protons through the slots?

[CHAS1422]

@maplebayou1 For every action there is an equal and opposite reaction. Forces and fields are communicated in ways we do not yet understand. I tire of the mysterious explanations of quanum mechanics experts who claim the unpredictable and statistical probabilities of partical behavior. It may be true our models lack the ability to predict, but I would argue that there is a reason or a force that we simply do not yet understand or cannot detect. String theory is the worst at nebulous explanations.

[maplebayou1]

@CHAS1422 Electrons do, it is believed, give off virtual photons continually. The problem is that a particle's behavior can depend on events that do not involve it directly, and even circumstances occurring after it is long gone. See delayed choice quantum eraser.

[CHAS1422]

perhaps the electron is accompanied by an EM wave. The wave passing through ahead leaves a diffrction pattern field. The electron passing through the field is guided to a probability for its landing spot based on the em pattern that it falls into.

[IIXVXII]

PLEASE, don't ever delete this video! This is the most amazing video I've ever found on Youtube.