Comment on ``The Effect of Vacuum Polarization ... in Strongly   Magnetized Plasmas'' by Ozel (astro-ph/0203449)
  We have recently shown that in a highly magnetized neutron star atmospheric plasma, vacuum polarization can induce resonant conversion of photon polarization modes via a mechanism analogous to MSW neutrino oscillation. In a recent paper Ozel has dismissed this mode conversion effect as ``mistakes''. Here we explain why our arguments/calculations of this effect are correct. 
Dong Lai and Wynn C.G. Ho (Cornell)