Let me try to summarize what I take from it ... y'all let me know if I butcher it.
They observed the interference pattern from a triple slit experiment, built up 1 photon at a time. It was the superposition of the patterns you'd get from doing the 3 independant dual slit experiments, the 3 dual slits being left + center, center + right, left + right. This was the 1'st experimental verification of Max Born's prediction ??
That was exactly my immediate conclusion after reading the thread , then the link does not offer much info on the outcome of this experiment.
First of all, this is an interesting experiment, why curious physicists after double-slit confusion have not tried this triple slit experiment before?
My guess is
a) when one slit is blocked, they'll observe interference pattern from the other 2 slits.
b) They will see 3 different interference patterns (with 1 slit blocked) depending on separations of 2 unblocked slits.
c) when all 3 slits are open, they will observe superposition of 3 interference patterns from 3 sources as pointed out by Mac above.
What I want to know is
a) What happens when a detector is placed behind a slit to confirm passing of a photon?
Will there be an interference pattern of 2 slits? Or
All interference pattern will vanish?? If this happens, physicists have a lot of explaining to do.