title: Superconducting vortices in ac fields: does the Kohn theorem work?
abstract: Electrodynamics of clean pinning-free type II superconductors in the mixed state is derived using the Boltzmann kinetic equations for excitations. The condition of the vortex cyclotron resonance is found. The reason why this resonance does not comply with the Kohn theorem is discussed.
authors.affiliation: Low Temperature Laboratory, Helsinki University of Technology, P.O. Box 2200, FIN-02015 HUT Finland.
authors.forename: N B
authors.initials: NB
authors.lastname: Kopnin
authors.forename: V M
authors.initials: VM
authors.lastname: Vinokur