Vector vortex solitons in two-component Bose-Einstein condensates with modulated nonlinearities and a harmonic trap

被引：3

作者：

Xu, Si-Liu ^{[1
]}

Wang, Ze-Qiang ^{[1
]}

He, Jun-Rong ^{[1
]}

Xue, Li ^{[1
]}

Belic, Milivoj R. ^{[2
,3
]}

机构：

[1] HuBei Univ Sci & Technol, Sch Elect & Informat Engn, Xianning, Peoples R China

[2] Texas A&M Univ Qatar, Sci Program, Doha, Qatar

[3] Inst Phys Belgrade, Zemun, Serbia

来源：

JOURNAL OF MODERN OPTICS | 2018年 / 65卷 / 13期

关键词：

vector solitary waves; Bose-Einstein condensates; Spatially modulated nonlinearity; FESHBACH RESONANCES; DYNAMICS; WAVES;

D O I：

10.1080/09500340.2018.1455915

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We introduce vector solitary waves in two-component Bose-Einstein condensates with spatially modulated nonlinearity coefficients and a harmonic trapping potential. Using the self-similarity method, novel vector solitary waves are built with the help of Whittaker function, including multipole solutions and necklace rings. The stability of vortex soliton pairs is examined by direct numerical simulation; the results show that a new class of stable low-order vortex soliton pairs with n=2 and m3 can be supported by the spatially modulated interaction in the harmonic trap. Higher order vector-vortex soliton is found unstable over prolonged distances.

引用

页码：1542 / 1548

页数：7

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