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If we perform the double slit experiment by shoting photons covering one hole at a time, would we see equally the double slit interference?.

That is, the same set up of double slit but fire photons each time covering alternatively the holes.

Does it show interference also?

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2 Answers 2

No. Interference occurs in the double-slit experiment because the individual photons had amplitudes for each hole, and these amplitudes interfere. If you turn off one of the holes each time a photon is fired, you will not see interference. (Aside from the diffraction pattern of a single hole, of course.)

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No. An interference pattern is observed in the double-slit experiment because the quantum trajectories of individual photons interfere with themselves when there are more than one hole. If you cover one of the holes there is no interference as shown in the image (above single slit; below double slit)

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