Das Teilchen im Kasten: Strukturen in der Wahrscheinlichkeitsdichte / The Particle in a Box : Structures in the Probability

Abstract
Recently W. Kinzel found characteristic structures, e. g. canals and ridges, in the contour plot of the quantum probability density of a particle moving in a box with infinitely high walls. Using the Wigner function we provide an analytical explanation of this numerical observation. Moreover we demonstrate that similar space-time structures also appear in other potentials, such as the one governing the vibrational motion of a diatomic molecule.

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