title: Quadratic solitons in nonconservative media.
abstract: We develop a perturbation theory for the evolution of solitary waves in quadratic nonconservative nonlinear media. The expressions derived for the solitons' amplitude and width permit us to estimate straightforwardly the damping-amplification rate of an arbitrary soliton of the unperturbed system. The analytical results obtained agree well with numerical experiments.
authors: S
authors: S
authors: Darmanyan
authors: A
authors: A
authors: Kobyakov
authors: F
authors: F
authors: Lederer