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Controllable behaviors of nonautonomous solitons on background of continuous wave and cnoidal wave in \(\mathcal {PT}\)-symmetric dimer with inhomogeneous effect

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Abstract

We obtain exact \(\mathcal {PT}\)-symmetric and \(\mathcal {PT}\)-antisymmetric nonautonomous soliton solutions on background waves. These solutions indicate that dispersion and nonlinear coefficients influence form factors of nonautonomous solitons such as amplitude, width and center; however, linear coupling coefficient and gain/loss parameter only influence phase of solitons. Based on these solutions, the controllable behaviors such as postpone, sustainment and restraint on continuous wave background in an exponential decreasing dispersion system are discussed. Moreover, the propagation behaviors of solitons on the cnoidal wave background in different dispersion systems are also studied.

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  1. School of Electronics Information, Zhejiang University of Media and Communications, Hangzhou, 310018, Zhejiang, People’s Republic of China

    Mei-Zhen Jin & Jie-Fang Zhang

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  1. Mei-Zhen Jin
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  2. Jie-Fang Zhang
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Correspondence to Mei-Zhen Jin.

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Jin, MZ., Zhang, JF. Controllable behaviors of nonautonomous solitons on background of continuous wave and cnoidal wave in \(\mathcal {PT}\)-symmetric dimer with inhomogeneous effect. Nonlinear Dyn 87, 2179–2186 (2017). https://doi.org/10.1007/s11071-016-3181-7

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  • DOI: https://doi.org/10.1007/s11071-016-3181-7

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