An experiment analogous to the classical diffraction of light from a circular aperture has been realized with electrons. The results are used to introduce undergraduate students to the wave behaviour of electrons. The diffraction fringes produced by the circular aperture are compared to those predicted by quantum mechanics and are exploited to present and discuss the Heisenberg uncertainty principle.
G. Matteucci, L. Ferrari, A. Migliori (2010). The Heisenberg uncertainty principle demonstrated with an electron diffraction experiment. EUROPEAN JOURNAL OF PHYSICS, 31, 1287-1293 [10.1088/0143-0807/31/5/027].
The Heisenberg uncertainty principle demonstrated with an electron diffraction experiment
MATTEUCCI, GIORGIO;FERRARI, LORIS;
2010
Abstract
An experiment analogous to the classical diffraction of light from a circular aperture has been realized with electrons. The results are used to introduce undergraduate students to the wave behaviour of electrons. The diffraction fringes produced by the circular aperture are compared to those predicted by quantum mechanics and are exploited to present and discuss the Heisenberg uncertainty principle.File in questo prodotto:
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