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Breather and rogue wave solutions of a generalized nonlinear Schrödinger equation
L H Wang1, K Porsezian, J S He
1Department of Mathematics, Ningbo University, Ningbo, Zhejiang 315211, PR China.
Abstract:
In this paper, using the Darboux transformation, we demonstrate the generation of first-order breather and higher-order rogue waves from a generalized nonlinear Schrödinger equation with several higher-order nonlinear effects representing femtosecond pulse propagation through nonlinear silica fiber. The same nonlinear evolution equation can also describe the soliton-type nonlinear excitations in classical Heisenberg spin chain. Such solutions have a parameter γ(1), denoting the strength of the higher-order effects. From the numerical plots of the rational solutions, the compression effects of the breather and rogue waves produced by γ(1) are discussed in detail.
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