Coherent fluxon motion in parallel arrays of long Josephson junctions

We propose a structure where homopolar fluxons are expected to have an attr active;interaction energy on a physically intuitive basis and such an inter action is recovered in the proposed mathematical model of the system. The i nferred coherent motion of fluxons is then found experimentally in arrays o f long Josephson junctions. The dynamics are also discussed with the help o f numerical simulations.