- #1
Buckethead
Gold Member
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Can anyone describe in detail the exact device used when detecting single photon/electron presence through a slit in a dual slit experiment. For an electron I suspect a coil is used to detect the electron passing through without destroying it, but for a photon, it's not possible to detect a single photon going through a slit without interacting with it (ccd or whatever) in which case the photon would not actually complete it's journey. So how it is done?