@ARTICLE\{IMM2003-03004,
    author       = "C. Corria and P. L. Christiansen and Y. B. Gaididei and V. Muto and N. F. Pedersen and M. P. S{\o}rensen",
    title        = "Fluxons and their interactions in a system of three stacked Josephson junctions",
    year         = "2003",
    keywords     = "Sine Gordon systems, Josephson junctions",
    pages        = "035415",
    journal      = "Physical Review B",
    volume       = "68",
    editor       = "",
    number       = "",
    publisher    = "",
    url          = "http://www2.compute.dtu.dk/pubdb/pubs/3004-full.html",
    abstract     = "Fluxon dynamics in a system of three coupled driven damped sine-Gordon equations is investigated. Bunching of fluxons is observed. It is shown that fluxon-fluxon-fluxon bound states exist in a certain interval of the fluxon velocity. Attraction between fluxons occurs as a result of indirect fluxon-fluxon interaction mediated by Swihart waves. To tackle the problem analytically a piece-wise linear approach is developed. The analytical approximations show good agreement with the results obtained by direct numerical simulations."
}