Influence of a nonlinear coupling on the supratransmission effect in modified sine-Gordon and Klein–Gordon lattices

R. Alima, S. Morfu, P. Marquié, B. Bodo and B.Z. Essimbi

Chaos, Solitons & Fractals, 2017, vol. 100, issue C, 91-99

Abstract: In this paper, we analyze the conditions leading to the nonlinear supratransmission phenomenon in two different models: a modified fifth order Klein–Gordon system and a modified sine-Gordon system. The modified models considered here are those with mixed coupling, the pure linear coupling being associated with a nonlinear coupling. Especially, we numerically quantify the influence of the nonlinear coupling coefficient on the threshold amplitude which triggers the nonlinear supratransmission phenomenon. Our main result shows that, in both models, when the nonlinear coupling coefficient increases, the threshold amplitude triggering the nonlinear supratransmission phenomenon decreases.

Keywords: Supratransmission; Solitons; Localized modes; Nonlinear waveguides (search for similar items in EconPapers)
Date: 2017
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:100:y:2017:i:c:p:91-99

DOI: 10.1016/j.chaos.2017.05.009

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