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American Journal of Physics

Solutions of the Schrödinger equation using approximate nucleon–nucleon and Λ–nucleon potentials

S.N. Banerjee, S. N. Chakraborty

Published Mar 1, 1980• 0 citations
Publisher

Abstract

An approach related to the teaching of the chapter on bound and scattering states in a short-range potential, which forms a standard part of quantum-mechanics course, is outlined with an example. The proposed interaction closely approximates the realistic Yukawa potential. It also represents the Coulomb potential in a limiting case. Investigation of the Schrödinger equation with the potential may serve as an excellent demonstration to be incorporated in the undergraduate quantum-mechanics or nuclear physics course.

DOI
10.1119/1.12161

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An approach related to the teaching of the chapter on bound and scattering states in a short-range potential, which forms a standard part of quantum-mechanics course, is outlined with an example. The proposed interaction closely approximates the realistic Yukawa potential. It also represents the Coulomb potential in a limiting case. Investigation of the Schrödinger equation with the potential may serve as an excellent demonstration to be incorporated in the undergraduate quantum-mechanics or nuclear physics course.
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An important technique for teaching introductory wave mechanics is provided by the numerical calculation of stationary state solutions of the Schrödinger equation. Realistic problems in wave mechanics that do not require sophisticated computer techniques are very valuable for the instruction of undergraduates. In the central-field model for atoms, the calculation of electron states reduces to the solution of a one-dimensional differential equation whose numerical solutions are no more difficult to obtain than those for a finite square well. A method used by our students is discussed in this paper for the calculation of the electron wavefunctions in a central-field potential. By working this problem, students obtain meaningful results that give them insight into the theory of atomic structure. Results of their experience are included, and possibilities of extending this example are discussed.