A Purely Classical Derivation of the Meissner Effect?
  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. 
A.M. Gulian
physics.class-ph cond-mat.supr-con