Perturbation scheme for a fluxon in a curved Josephson junction

Abstract

The kink solution in the long Josephson junction is studied. The perturbation scheme of constructing the fluxon solution in curved junction is formulated. The prediction from the perturbation scheme is compared with the prediction that follows from the numerical studies of the complete field model.

The impact of thermal noise on kink propagation through a heterogeneous system

“…The effects of arbitrary curvature on fluxon motion in curved Josephson junctions were studied in articles [17,18,19,20,21] with curvatures playing the role of potential barriers for kink motion. In particular in [22] the different simplified effective descriptions were compared in order to choose the most suitable for the considered system.…”