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Title: Wave-unlocking transition in resonantly coupled complex Ginzburg-Landau equations
Authors: Amengual, Pau; Walgraef, Daniel; San Miguel, Maxi ; Hernández-García, Emilio
Issue Date: 1996
Publisher: American Physical Society
Citation: Physical Review Letters 76: 1956-1959 (1996)
Abstract: 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.
URI: http://hdl.handle.net/10261/53902
DOI: 10.1103/PhysRevLett.76.1956
Identifiers: doi: 10.1103/PhysRevLett.76.1956
issn: 0031-9007
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