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arXiv 1004.3672cond-mat.quant-gasnlin.PS
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双组分玻色-爱因斯坦凝聚体中稳定的多维孤子条纹

Stable multidimensional soliton stripes in two-component Bose-Einstein condensates

Valeriy A. Brazhnyi, Víctor M. Pérez-García

摘要:

本文讨论了在不混溶区中,如何在两组分玻色-爱因斯坦凝聚体中构造稳定的一维暗孤子的多维扩展,即所谓的孤子条纹。我们展示了如何使用第二个组件,以填补核心的暗孤子条纹导致减少不稳定性,同时在均匀介质中传播。我们还讨论了在存在陷阱的情况下,如何通过增加暗条纹核的填充量来构造任意长寿命的暗孤子条纹。数值实验也证明了暗孤子条纹在碰撞情形下的鲁棒性。

英文摘要:

We discuss how to construct stable multidimensional extensions of one-dimensional dark solitons, the so-called soliton stripes, in two-species Bose-Einstein condensates in the immiscible regime. We show how using a second component to fill the core a dark soliton stripe leads to reduced instabilities while propagating in homogeneous media. We also discuss how in the presence of a trap arbitrarily long-lived dark soliton stripes can be constructed by increasing the filling of the dark stripe core. Numerical evidences of the robustness of the dark soliton stripes in collision scenarios are also provided.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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