title: Robust propagation of two-color soliton clusters supported by competing nonlinearities.
abstract: We reveal numerically the remarkably robust propagation of quasistationary two-color soliton clusters in media with competing quadratic and cubic nonlinearities. We predict that such clusters carrying nonzero angular momentum can propagate over any practically feasible crystal length before they decay, even in the presence of input random perturbations.
authors.affiliation: Institute of Photonic Sciences and Department of Signal Theory and Communications, Universitat Politecnica de Catalunya, 08034 Barcelona, Spain.
authors.forename: Yaroslav V
authors.initials: YV
authors.lastname: Kartashov
authors.forename: Lucian-Cornel
authors.initials: LC
authors.lastname: Crasovan
authors.forename: Dumitru
authors.initials: D
authors.lastname: Mihalache
authors.forename: Lluis
authors.initials: L
authors.lastname: Torner