Macroscopic quantum interference in an ultra-pure metal

As high school students see in experiments with water waves, and we observe and use with light waves in many optical devices, interference is a fundamental property associated with wave-like behavior. Indeed, Davisson and Germer's famous observation of interference in experiments with dilute beams of electrons, nearly a century ago, gave key experimental support to the correctness of the then-new quantum theory.

from Latest Science News -- ScienceDaily https://ift.tt/2Z9sEDu

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