Fluxon modes in stacked Josephson junctions

We show how to construct fluxon modes from plasma modes in the inductively coupled stacked Josephson junctions, and consider some special cases of these fluxon modes analytically. In some cases we can find exact analytical solutions when we choose the bias current in a special way. We also consider numerically what happens to these modes when the bias current is chosen to be equal in all junctions, which is the natural way of having the bias current in an experimental setup. (C) 2004 Elsevier B.V. All rights reserved.