Physical Review A

Approach to perturbation theory for box models

Francisco Marcelo Fernández

Published Jul 1, 1993• 5 citations

Abstract

We generalize a recently developed perturbation approach [F. M. Fern\'andez and E. A. Castro, Phys. Rev. A 46, 7288 (1992)], extending its applicability to a wider variety of separable quantum-mechanical problems. As an illustrative example, we consider a particle in a one-dimensional box with a finite potential wall perturbed by a linear potential and obtain the perturbation corrections to the wave function and energy of an arbitrary state in terms of the corresponding unperturbed quantities.

DOI: 10.1103/physreva.48.189

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