title: Fractal structures and multiparticle effects in soliton scattering.
abstract: We study in detail the interaction of composite solitary waves and consider, as an example, the breather collisions in a weakly discrete sine-Gordon equation. We reveal a physical mechanism of fractal soliton scattering associated with multiparticle effects, and demonstrate chaotic interaction of two breathers with incommensurable frequencies.
authors.affiliation: Department of Applied Physics and Chemistry, University of Electro-Communications, Chofu-shi, Tokyo 182-8585, Japan.
authors.forename: S V
authors.initials: SV
authors.lastname: Dmitriev
authors.forename: Y S
authors.initials: YS
authors.lastname: Kivshar
authors.forename: T
authors.initials: T
authors.lastname: Shigenari