Periodic and rational solutions of the reduced Maxwell-Bloch equations

Periodic and rational solutions of the reduced Maxwell-Bloch equations
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简化麦克斯韦-布洛赫方程的周期解和有理解

DOI:
10.1016/j.cnsns.2017.10.017
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发表时间:
2017-05
影响因子:
3.9
通讯作者:
Xianguo Geng
Xianguo Geng
中科院分区:
数学2区
文献类型:
--
作者:
Jiao Wei;Xin Wang;Xianguo Geng

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研究了描述短光脉冲在具有共振非简并跃迁的介质中传输的简化Maxwell-Bloch方程。通过达布变换得到了广义N阶周期解。从所得到的一般周期解的两种不同的极限情况出发,分别得到了具有紧致行列式表示的含多个自由参数的N阶退化周期解和N阶有理解.从一阶到二阶,这些解决方案的显式表达式。文中给出了RMB方程的单峰、双峰双陷、双峰和单陷四个分量在二阶有理解中的典型非线性波型。这种有理解对应于约化Maxwell-Bloch方程中的异常波。
We investigate the reduced Maxwell–Bloch (RMB) equations which describe the propagation of short optical pulses in dielectric materials with resonant non-degenerate transitions. The generalNth-order periodic solutions are provided by means of the Darboux transformation. TheNth-order degenerate periodic andNth-order rational solutions containing several free parameters with compact determinant representations are derived from two different limiting cases of the obtained general periodic solutions, respectively. Explicit expressions of these solutions from first to second order are presented. Typical nonlinear wave patterns for the four components of the RMB equations such as single-peak, double-peak-double-dip, double-peak and single-dip structures in the second-order rational solutions are shown. This kind of the rational solutions correspond to rogue waves in the reduced Maxwell–Bloch equations.
DOI: --
发表时间: 2015-03
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