Conservation laws, Darboux transformation and localized waves for the N-coupled nonautonomous Gross-Pitaevskii equations in the Bose-Einstein condensates

被引：16
|
作者：
Yang, Sheng-Xiong [1 ]
Wang, Yu-Feng [1 ]
Zhang, Xi [1 ]
机构：
[1] Minzu Univ China, Coll Sci, Beijing 100081, Peoples R China
来源：
CHAOS SOLITONS & FRACTALS | 2023年 / 169卷
基金：
中国国家自然科学基金;
关键词：
N-coupled nonautonomous Gross-Pitaevskii; equation; Darboux transformation; Localized waves; Conservation laws; ROGUE WAVES; SOLITONS; BRIGHT;
D O I：
10.1016/j.chaos.2023.113272
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
Under investigation in this paper is the N-coupled nonautonomous Gross-Pitaevskii equations, which describe the dynamics of the Bose-Einstein condensates. Based on the Lax pair, infinitely-many conservation laws and Mth-fold Darboux transformation are constructed. Three types of the nonautonomous localized waves are obtained via the Darboux transformation. The nonautonomous bound-state soliton is observed. The profile and energy distribution of the nonautonomous breather and rogue wave are shown. The influences of coefficients for the shape and position of background wave are discussed. In addition, the interactions between three types of the nonautonomous localized waves are analyzed graphically.
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页数：15
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