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http://www.pnas.org/content/109/24/9314.full
According to the experimenters they have found out which path the photon took and still observed the interference pattern. So they know that the particle went through the left or right slit but at the same time saw the interference pattern built up on the back wall.
What do you guys think?
Do they really know which slit the photon went through?
According to the experimenters they have found out which path the photon took and still observed the interference pattern. So they know that the particle went through the left or right slit but at the same time saw the interference pattern built up on the back wall.
What do you guys think?
Do they really know which slit the photon went through?