title: Motion of compactonlike kinks.
abstract: We analyze the ability of a compactonlike kink (i.e., kink with compact support) to execute a stable ballistic propagation in a discrete Klein-Gordon system with anharmonic coupling. We demonstrate that the effects of lattice discreteness, and the presence of a linear coupling between lattice sites, are detrimental to a stable ballistic propagation of the compacton, because of the particular structure of the small-oscillation frequency spectrum of the compacton in which the lower-frequency internal modes enter in direct resonance with phonon modes. Our study reveals the parameter regions for obtaining a stable ballistic propagation of a compactonlike kink. Finally we investigate the interactions between compactonlike kinks.
authors.affiliation: Laboratoire de Physique, Université de Bourgogne, 9 Avenue Alain Savary, Boîk Postale 47870, 21078 Dijon, France.
authors.forename: P
authors.initials: P
authors.lastname: Tchofo Dinda
authors.forename: T C
authors.initials: TC
authors.lastname: Kofane
authors.forename: M
authors.initials: M
authors.lastname: Remoissenet