On the theory of cavities with point-like perturbations. Part II: Rectangular cavities

Abstract

We consider an application of a general theory for cavities with point-like perturbations for a rectangular shape. Hereby we concentrate on experimental wave patterns obtained for nearly degenerate states. The nodal lines in these patterns may be broken, which is an effect coming only from the experimental determination of the patterns. These findings are explained within a framework of the developed theory.