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Mar 27, 2019 at 16:31 comment added knzhou Related question here.
Jul 24, 2016 at 18:34 comment added knzhou @seyed Yes, but that's because you already put the quantum mechanics in by talking about single photons. If you didn't know photons existed already (say you were in the early 1900's), then diffraction by itself produces no evidence for their existence.
Jul 24, 2016 at 18:19 comment added Seyed If we lower the intensity of the laser beam to the point that just single photons come out in a while, record where the individual photons reach and wait a long time, the profile of recieved photons resembles exactly the above picture, but in this limit we can't use classical electromagnetism. This limit of the experiment is only explained on the quantum level. Right?
Jul 23, 2016 at 23:08 history edited knzhou CC BY-SA 3.0
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Jul 23, 2016 at 23:05 vote accept Christian Pao.
Jul 23, 2016 at 23:05 vote accept Christian Pao.
Jul 23, 2016 at 23:05
Jul 23, 2016 at 23:02 history edited knzhou CC BY-SA 3.0
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Jul 23, 2016 at 22:55 history answered knzhou CC BY-SA 3.0