# Comment on "On the realisation of quantum Fisher information"

## TL;DR

This paper corrects a previous calculation of the momentum Fisher information for a hydrogen atom model, providing an accurate derivation and discussing its educational and scientific importance.

## Contribution

It offers a corrected derivation of the momentum Fisher information for a one-dimensional hydrogen atom, addressing errors in prior work and emphasizing its significance.

## Key findings

- Previous calculation was incorrect
- Provides a correct derivation of the Fisher information
- Highlights didactical and scientific importance

## Abstract

It is shown that calculation of the momentum Fisher information of the quasione- dimensional hydrogen atom recently presented by Saha et al (2017 Eur. J. Phys. {\bf 38} 025103) is wrong. A correct derivation is provided and its didactical advantages and scientific significances are highlighted.