Journal
NONLINEAR DYNAMICS
Volume 85, Issue 2, Pages 973-980Publisher
SPRINGER
DOI: 10.1007/s11071-016-2736-y
Keywords
Vector combined and crossing Kuznetsov-Ma solitons; Coupled nonlinear Schrodinger equation; PT-symmetry; Controllable excitation
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Funding
- National Natural Science Foundation of China [11404289, 11547227]
- Education Department of Henan Province [16A140040]
- High-level Talents Research and Startup Foundation Projects for Doctors of Zhoukou Normal University [ZKNUC2015104]
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A variable-coefficient coupled nonlinear Schrodinger equation with balanced gain and loss is studied, and two kinds of analytical Kuznetsov-Ma soliton solutions including combined Kuznetsov-Ma soliton solution and crossing two-Kuznetsov-Ma soliton solution are obtained. In a diffraction decreasing system, the control for the excitation of two kinds of Kuznetsov-Ma soliton including rear excitation, peak excitation and initial excitation is investigated. The different peak locations of Kuznetsov-Ma soliton along the propagation direction appear repeatedly, which makes rear excitation, peak excitation and initial excitation happen again and again.
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