In superconductivity, a fluxon (also called an Abrikosov vortex or quantum vortex) is a vortex of supercurrent in a type-II superconductor, used by Alexei Abrikosov to explain magnetic behavior of type-II superconductors.[2] Abrikosov vortices occur generically in the Ginzburg–Landau theory of superconductivity.