A Purely Classical Derivation of the Meissner Effect?

TL;DR

This paper critically examines a recent claim that the Meissner effect can be explained purely through classical physics, highlighting flaws in the original classical derivation.

Contribution

It identifies and discusses errors in the classical derivation of flux expulsion, challenging the claim that the Meissner effect has a purely classical explanation.

Findings

The classical derivation in question misuses de Gennes' work.

The critique clarifies the limitations of classical explanations for the Meissner effect.

The paper emphasizes the quantum nature of the Meissner effect.

Abstract

A recent study (arXiv:1109.1968v2, to be published in American Journal of Physics) claims to provide a classical explanation of the Meissner effect. However, the argument misuses de Gennes' derivation of flux expulsion in superconductors.