Quantum Mechanics With Application

Approximation Methods for Bound States

Author(s): Iraj R. Afnan

Pp: 252-288 (37)

Doi: 10.2174/978160805250911101010252

* (Excluding Mailing and Handling)

Abstract

With a limit on the small number of problems that admit exact solutions, we turn in this chapter to approximation methods that can be used for bound state problems. The most commonly used method is the perturbation theory for which one use a small parameter to form the basis of a systematic expansion, or a variational method in which one hopes to set the best limit on the energy of a system. We will consider both of these approximation methods with applications to problems in atomic and molecular physics.

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