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28 March 2024
 
  » arxiv » cond-mat/0203206

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Harmonic forcing of an extended oscillatory system: Homogeneous and periodic solutions
Jeenu Kim ; Jysoo Lee ; Byungnam Kahng ;
Date 9 Mar 2002
Journal Phys. Rev. E Vol.65, 046208 (2002)
Subject Statistical Mechanics; Pattern Formation and Solitons | cond-mat.stat-mech nlin.PS
AbstractIn this paper we study the effect of external harmonic forcing on a one-dimensional oscillatory system described by the complex Ginzburg-Landau equation (CGLE). For a sufficiently large forcing amplitude, a homogeneous state with no spatial structure is observed. The state becomes unstable to a spatially periodic ``stripe’’ state via a supercritical bifurcation as the forcing amplitude decreases. An approximate phase equation is derived, and an analytic solution for the stripe state is obtained, through which the asymmetric behavior of the stability border of the state is explained. The phase equation, in particular the analytic solution, is found to be very useful in understanding the stability borders of the homogeneous and stripe states of the forced CGLE.
Source arXiv, cond-mat/0203206
Other source [GID 721809] pmid12005977
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