Comment on "Uncertainty Relation for Photons"

TL;DR

This paper critiques a recent derivation of the photon uncertainty relation, highlighting issues in the original arguments that affect the validity of their conclusions.

Contribution

It provides a critical analysis of the previous work, identifying problems in the derivation of the photon uncertainty relation.

Findings

Identifies flaws in the original derivation

Highlights impact on the validity of the uncertainty relation

Suggests need for revised theoretical approach

Abstract

In a recent interesting Letter [Phys. Rev. Lett. 108, 140401 (2012)] I. Bialynicki-Birula and his coauthor have derived the uncertainty relation for the photons in three dimensions. However, some of their arguments are problematical, and this impacts their conclusion.