Comment on "Fractional Angular Momenta, Gouy and Berry Phases in Relativistic Bateman-Hillion-Gaussian Beams of Electrons" [arXiv:1812.04957]

TL;DR

This paper comments on a previous work, highlighting that solutions to the Klein-Gordon and Dirac equations can be derived from generating functions, offering a different perspective on their solution methods.

Contribution

It provides a critique and alternative insight into the solution derivation of relativistic electron beams, emphasizing the use of generating functions.

Findings

Solutions can be obtained from generating functions.

Offers a new perspective on deriving relativistic beam solutions.

Highlights the potential for simplified solution methods.

Abstract

It is pointed out that the solutions of the Klein-Gordon and the Dirac equation derived in the paper addressed in this Comment (and many more solutions) may be obtained from generating functions.