Vive La Difference
Electrons and photons in a Mach-Zehnder interferometer show differences in their behavior
The output signal hit a minimum every time the two electron waves cancelled and a maximum when the waves maximally reinforced one another. But as they increased the current, the interference pattern waxed and waned in amplitude in an unexpected way, disappearing altogether at certain points. Researchers in France found similar results the following year.
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