Dynamics of a fluxon in a stack of coupled long Josephson junctions is studied numerically. Based on the numerical simulations, we show that the dependence of the propagation velocity c on the external bias current γ is determined by the ratio of the critical currents of the two junctions J.
@article{arxiv.nlin/0304011,
title = {On kink-dynamics of stacked-Josephson junctions},
author = {H. Susanto and T. P. P. Visser and S. A. van Gils},
journal= {arXiv preprint arXiv:nlin/0304011},
year = {2007}
}