Comment on ``Anomaly-Induced Magnetic Screening in (2+1) Dimensional QED at Finite Density"

TL;DR

This paper critiques a recent theoretical attempt to derive the Meissner effect in a (2+1)D QED model at finite density, arguing that the derivation is invalid from first principles.

Contribution

It provides a critical analysis showing the invalidity of a previous derivation of the Meissner effect in a specific quantum field theory model.

Findings

The recent derivation of the Meissner effect is flawed.

The critique clarifies the theoretical limitations of the previous work.

Abstract

It is shown that a recent attempt to derive the Meissner effect from first principles in a model field theory is invalid.