Stable radiating gap solitons and their resonant interactions with   dispersive waves in systems with parametric pump
  We study the formation of gap solitons in the presence of parametric pump. It is shown that parametric pump can stabilize stationary solitons continuously emitting dispersive waves. The resonant interactions of the radiation and the solitons are studied and it is shown that the solitons can be effectively controlled by the radiation. In particular it is shown that the solitons can collide or to get pinned to inhomogeneities due to the interactions mediated by the resonant radiation. 
Alexey V. Yulin, Leonardo R. Gorj\~ao, Kestutis Staliunas
physics.optics nlin.PS