title: Model of a two-dimensional extended chaotic system: evidence of diffusing dissipative solitons.
abstract: We investigate a two-dimensional extended system showing chaotic and localized structures. We demonstrate the robust and stable existence of two types of exploding dissipative solitons. We show that the center of mass of asymmetric dissipative solitons undergoes a random walk despite the deterministic character of the underlying model. Since dissipative solitons are stable in two-dimensional systems we conjecture that our predictions can be tested in systems as diverse as nonlinear optics, parametric excitation of granular media and clay suspensions, and sheared electroconvection.
authors.affiliation: Complex Systems Group, Facultad de Ingeniería y Ciencias Aplicadas, Universidad de los Andes, Avenida San Carlos de Apoquindo 2200, Santiago, Chile.
authors.forename: Carlos
authors.initials: C
authors.lastname: Cartes
authors.forename: Jaime
authors.initials: J
authors.lastname: Cisternas
authors.forename: Orazio
authors.initials: O
authors.lastname: Descalzi
authors.forename: Helmut R
authors.initials: HR
authors.lastname: Brand