Comment to: "The quantum square well with moving boundaries: a numerical analysis"

TL;DR

This paper critiques a previous study's claim about a numerical method for quantum square wells, demonstrating that the spectral method is more accurate than the criticized approach.

Contribution

It provides a direct comparison showing the spectral method's superior accuracy over the method proposed by Fojón et al.

Findings

Spectral method outperforms the criticized approach in accuracy.

Direct calculations confirm the spectral method's effectiveness.

The critique clarifies the reliability of numerical methods for quantum wells.

Abstract

In this comment we show that the approach presented by Foj\'on et al~\cite{Fojon10} is not as accurate as they claim. A straightforward calculation using the models considered buy those authors clearly shows that the spectral method, which the authors criticize, proves to be considerably better.