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arXiv 0708.2355nlin.PS
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偶极玻色-爱因斯坦凝聚体中的三维孤子和涡旋

Three-dimensional solitons and vortices in dipolar Bose-Einstein condensates

Yu. A. Zaliznyak, A. I. Yakimenko

摘要:

在Gross-Pitaevskii模型框架下,考虑局域五阶非线性和非局域偶极-偶极相互作用的同时作用,研究了玻色-爱因斯坦凝聚体中的三维孤波和涡旋结构.研究表明,非局域相互作用会显着改变形成阈值和限制在相干结构中的原子数量。一个强大的高阶($m=2$)的三维涡的外观被揭示。

英文摘要:

Three-dimensional solitary and vortex structures in Bose-Einstein condensates are studied in the framework of Gross-Pitaevskii model including the simultaneous action of local cubic-quintic nonlinearity and nonlocal dipole-dipole interactions. Nonlocal interactions are shown to change significantly the formation threshold and the numbers of atoms confined into the coherent structures. An appearance of robust high-order ($m=2$) three-dimensional vortices is revealed.

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