Soliton creation and annihilation in Josephson junction in the presence ofperiodic perturbation

The soliton creation and annihilation processes are demonstrated numericall y, in the long overlap Josephson junction in the first, second and third Ze ro-Field Step (ZFS) cases, using the perturbed sine-Cordon (sG) equation in the presence of periodic point-like weak inhomogeneities. In all the ZFS c ases, the created soliton is found to be in a bunched (congealed) mode with the other solitons. The I-V characteristics, corresponding to the kink dyn amics under a de bias, at which the creation and annihilation phenomena dem onstrated is compared with that-of an anti-kink dynamics under the same bia s condition.