期刊
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION
卷 32, 期 -, 页码 241-261出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cnsns.2015.08.008
关键词
Darboux transformation; Soliton; Shape-changing collision; Alpha helical proteins with interspine coupling at higher order; Optical communication
类别
资金
- National Natural Science Foundation of China [61308018]
- China Postdoctoral Science Foundation [2014T70031]
- Fundamental Research Funds for the Central Universities of China [2014RC019, 2015JBM111]
Based on the Lax representation, we solve the three coupled higher order nonlinear Schrodinger equations with the achievement of N-soliton solution formula, by means of Darboux transformation. With the involvement of multi-parameters (actually 21 parameters) in the two-soliton solutions, we investigate the soliton excitations and collisions in alpha helical proteins with interspine coupling at higher order, in virtue of multi-parameter management and graphical simulation. It is found that both elastic and inelastic collisions can take place under suitable parametric conditions. Additionally, there exist three kinds of shape-changing collision patterns among the three components, and the inelastic collision of single solitons occur in two different manners: enhancement or suppression of intensity. Our results of multiparameter management analysis may give theoretical support as well as further impetus in the experimental investigation on soliton excitations, elastic and inelastic collisions in alpha helical proteins with interspine coupling at higher order. (C) 2015 Elsevier B.V. All rights reserved.
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