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Simulation of Gaussian wave packets used to illustrate elementary quantum mechanics scenarios

2024/03/19 by Francisco Guzman-Cajica, Francisco S. Guzman, Francisco S. Guzmán Murillo · 1 voice
Engineering · Physics and Astronomy · #Classical mechanics #Computer network #Computer science #Gaussian #Network packet #Photonic and Optical Devices #Physics #Quantum #Quantum mechanics #Statistical physics #Wave packet #physics.ed-ph

paper · pdf · doi:10.31349/revmexfise.21.020219

arxiv published 2024/03/19 · arxiv updated 2024/03/19 · openalex created_date 2024/03/24 · openalex publication_date 2024/07/01 · openalex updated_date 2026/08/01

Abstract

In this paper we numerically solve the time dependent Schrödinger equation for scenarios using wave packets. These examples include the free wave packet, which we use to show the difference between group and phase velocities, the packet in a harmonic oscillator potential with non-trivial initial conditions in one and two dimensions, which is compared with their classical analogs to show how Ehrenfest theorem holds. We also include simulations of the diffraction through the single and double slit potentials, the refraction with a step potential and the dispersion by a central potential. The aim of this paper is to illustrate with simulations, nowadays easy to implement, scenarios that can help explaining the basics of the wave-particle duality.

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