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Chin. Phys. B, 2016, Vol. 25(5): 050202    DOI: 10.1088/1674-1056/25/5/050202
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Dynamics of cubic-quintic nonlinear Schrödinger equation with different parameters

Wei Hua(花巍)1, Xue-Shen Liu(刘学深)2, Shi-Xing Liu(刘世兴)3
1. College of Physics Science and Technology, Shenyang Normal University, Shenyang 110034, China;
2. Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China;
3. College of Physics, Liaoning University, Shenyang 110036, China

We study the dynamics of the cubic-quintic nonlinear Schrödinger equation by the symplectic method. The behaviors of the equation are discussed with harmonically modulated initial conditions, and the contributions from the quintic term are discussed. We observe the elliptic orbit, homoclinic orbit crossing, quasirecurrence, and stochastic motion with different nonlinear parameters in this system. Numerical simulations show that the changing processes of the motion of the system and the trajectories in the phase space are various for different cubic nonlinear parameters with the increase of the quintic nonlinear parameter.

Keywords:  nonlinear Schrödinger equation      phase space      symplectic method  
Received:  11 October 2015      Revised:  05 January 2016      Accepted manuscript online: 
PACS:  02.60.Cb (Numerical simulation; solution of equations)  
  05.45.Yv (Solitons)  

Project supported by the National Natural Science Foundation of China (Grant Nos. 11301350, 11472124, and 11271158) and the Doctor Start-up Fund in Liaoning Province, China (Grant No. 20141050).

Corresponding Authors:  Wei Hua     E-mail:

Cite this article: 

Wei Hua(花巍), Xue-Shen Liu(刘学深), Shi-Xing Liu(刘世兴) Dynamics of cubic-quintic nonlinear Schrödinger equation with different parameters 2016 Chin. Phys. B 25 050202

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