Single and double slit scattering of wave packets

Details Single and double slit scattering of wave packets Single and double slit scattering of wave packets

2001-09-21

arxiv.org/abs/quant-ph/0109111v2

J.Phys.A35:4599-4616,2002

Physics

Quantum Physics

Latex format, 35 pages, 15 eps (some colored) figures

Scientific paper

10.1088/0305-4470/35/21/309

The scattering of wave packets from a single slit and a double slit with the Schr\"odinger equation, is studied numerically and theoretically. The phenomenon of diffraction of wave packets in space and time in the backward region, previously found for barriers and wells, is encountered here also. A new phenomenon of forward diffraction that occurs only for packets thiner than the slit, or slits, is calculated numerically as well as, in a theoretical approximation to the problem. This diffraction occurs at the opposite end of the usual diffraction phenomena with monochromatic waves.

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