Impurity-induced stabilization of solitons in arrays of parametrically driven nonlinear oscillators

N. V. Alexeeva, I. V. Barashenkov, G. P. Tsironis

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

Chains of parametrically driven, damped pendula are known to support solitonlike clusters of in-phase motion which become unstable and seed spatiotemporal chaos for sufficiently large driving amplitudes. We show that the pinning of the soliton on a “long” impurity (a longer pendulum) expands dramatically its stability region, whereas “short” defects simply repel solitons producing an effective partition of the chain. We also show that defects may spontaneously nucleate solitons.

Original languageEnglish
Pages (from-to)3053-3056
Number of pages4
JournalPhysical Review Letters
Volume84
Issue number14
DOIs
Publication statusPublished - Jan 1 2000

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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