Coherent structures in coupled chains of self-excited oscillators

Oscillations in a system of two coupled chains of identical limit-cycle oscillators are investigated. It is shown that a pair of coupled chains with different collective frequencies exhibits stable fronts between two possible asymptotic states. The inhomogeneous states formed by the fronts persist f...

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Bibliographic Details
Published in:Physics letters. A 1995-05, Vol.201 (2), p.205-212
Main Authors: Osipov, G.V., Sushchik, M.M.
Format: Article
Language:English
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Summary:Oscillations in a system of two coupled chains of identical limit-cycle oscillators are investigated. It is shown that a pair of coupled chains with different collective frequencies exhibits stable fronts between two possible asymptotic states. The inhomogeneous states formed by the fronts persist for weak coupling between the oscillators in each chain due to the discrete space variable, thus providing conditions for the existence of localized structures. For stronger coupling, the interface between two regions of the chains may propagate. The mean speed of propagation is investigated numerically and the results are compared with qualitative analysis.
ISSN:0375-9601
1873-2429
DOI:10.1016/0375-9601(95)93835-Y