Autori: P. Anghel-Vasilescu, J. Dorignac, F. Geniet, J. Leon, and M. Taki
Editorial: Phys. Rev. Lett , 105, 2010.
A method is proposed to solve the challenging problem of determining the supratransmission threshold (onset of instability of harmonic boundary driving inside a band gap) in multicomponent nonintegrable nonlinear systems. It is successfully applied to the degenerate three-wave resonant interaction in a birefringent quadratic medium where the process generates spatial gap solitons. No analytic expression is known for this model showing the broad applicability of the method to nonlinear systems
Cuvinte cheie: nonlinear supratransmission threshold, nonintegrable multicomponent systems