Reflection above the barrier as tunneling in momentum space

Abstract

a potential V (x), when the height of the potential exceeds the particle’s energy for a < x < b. Elementary derivations of this result can be found in most textbooks[1]. Quantum mechanics also predicts that a particle with energy E, greater than a barrier V (x) for all x, will reflect from the barrier. This can also be estimated using semiclassical methods… (More)

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