Revista Brasileira de Ensino de Física

Did you really miss a Delta function here?

Marcos Amaku, Francisco Antônio Bezerra Coutinho, P.C.C. dos Santos, Eduardo Massad

Published Jan 1, 2024• 0 citations

Abstract

This is the third article in a series dedicated to examining the use of the delta function in the physics literature. Here we discuss the appearance of a delta function in the second derivative of the wave function if its derivative is discontinuous. When this happens it is often claimed in the literature that the proposed wave function must be eigenfunction of an operator that contains a delta function and, in some cases, it is rejected. We study in this paper what we believe are alternatives ways to deal with this situation.

DOI: 10.1590/1806-9126-rbef-2023-0316

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