Flux tube dynamics in the dual superconductor - art. no. 034011

We study plasma oscillations in a Bur tube of the dual superconductor model of 't Hooft and Mandelstam. A magnetic condensate is coupled to an electro magnetic field by its dual vector potential, and fixed electric charges set up a flux tube. An electrically charged fluid (a quark plasma) flows in th e tube and screens the fixed charges via plasma oscillations. We investigat e both type I and type II superconductors, with plasma frequencies both abo ve and below the threshold for radiation into the Higgs vacuum. We find str ong radiation of electric flux into the superconductor in all regimes, and argue that this invalidates the use of the simplest dual superconductor mod el for dynamical problems.