Comment on "Relativistic extension of shape-invariant potentials"

TL;DR

This paper critiques Alhaidari's approach to relativistic quantum problems, highlighting errors in gauge considerations and arguing that the class of exactly solvable relativistic problems is more limited than previously claimed.

Contribution

It provides a critical analysis of Alhaidari's method, clarifying misconceptions and correcting the scope of solvable relativistic potentials.

Findings

Alhaidari's gauge considerations are incorrect

The class of exactly solvable relativistic problems is limited

The claimed extension of solvable potentials is overstated

Abstract

This comment directs attention to some fails of the Alhaidari approach to solve relativistic problems. It is shown that his gauge considerations are way off the mark and that the class of exactly solvable relativistic problems is not so enlarged as Alhaidari thinks it is.