Chaotic soliton in coupled long Josephson junctions

The interaction between soliton and sinusoidal wave in two weakly coupled l ong Josephson junctions is studied. Theoretical analysis reveals that the s oliton may be embedded in Melnikov chaotic attractors and the Fiske-stepmod es are implied in the boundedness condition of the system. Comparison betwe en the chaotic soliton oscillators and synchronized soliton oscillators sho ws that the former possesses greater maximal velocity and energy.