中国物理B ›› 2019, Vol. 28 ›› Issue (12): 120201-120201.doi: 10.1088/1674-1056/ab50fc
• GENERAL • 下一篇
Zhi-Jin Xiong(熊志进), Qing Xu(许庆), Liming Ling(凌黎明)
Zhi-Jin Xiong(熊志进)1, Qing Xu(许庆)2, Liming Ling(凌黎明)2
摘要: We exhibit some new dark soliton phenomena on the general nonzero background for a defocusing three-component nonlinear Schrödinger equation. As the plane wave background undergoes unitary transformation SU(3), we obtain the general nonzero background and study its modulational instability by the linear stability analysis. On the basis of this background, we study the dynamics of one-dark soliton and two-dark-soliton phenomena, which are different from the dark solitons studied before. Furthermore, we use the numerical method for checking the stability of the one-dark-soliton solution. These results further enrich the content in nonlinear Schrödinger systems, and require more in-depth studies in the future.
中图分类号: (Integrable systems)