Wave-unlocking transition in resonantly coupled complex Ginzburg-Landau equations.
نویسندگان
چکیده
We study the effect of spatial frequency forcing on standing-wave solutions of coupled complex Ginzburg-Landau equations. The model considered describes several situations of nonlinear counterpropagating waves and also of the dynamics of polarized light waves. We show that forcing introduces spatial modulations on standing waves which remain frequency locked with a forcing-independent frequency. For forcing above a threshold the modulated standing waves unlock, bifurcating into a temporally periodic state. Below the threshold the system presents a kind of excitability.
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عنوان ژورنال:
- Physical review letters
دوره 76 11 شماره
صفحات -
تاریخ انتشار 1996