Three-dimensional vortex configurations in a rotating Bose-Einstein condensate
Three-dimensional vortex configurations in a rotating Bose-Einstein condensate
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DOI：
10.1103/physreva.68.023603
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发表时间：
2003-08-01
影响因子：
2.9
通讯作者：
Danaila, I
中科院分区：
文献类型：
--
作者：
Aftalion, A;Danaila, I
我们考虑一个旋转的玻色-爱因斯坦凝聚在一个谐波陷阱和数值研究的波函数的行为，解决了Gross-Pitaevskii方程。根据最近的实验[P. Rosenbuch，V. Bretin和J. Dalibard，Phys.Rev.Lett. 89，200403（2002）]，详细研究了单量子化涡旋的U形或S形线。我们发现，一个单一的涡只能位于x-z或y-z平面。S型涡存在的角速度Ω的所有值，而U涡存在Ω足够大。我们计算了不同的配置与多个涡的能量和研究的三维结构的涡。
We consider a rotating Bose-Einstein condensate in a harmonic trap and investigate numerically the behavior of the wave function which solves the Gross-Pitaevskii equation. Following recent experiments [P. Rosenbuch, V. Bretin, and J. Dalibard, Phys. Rev. Lett. 89, 200403 (2002)], we study in detail the line of a single quantized vortex, which has a U or S shape. We find that a single vortex can lie only in the x-z or y-z plane. S-type vortices exist for all values of the angular velocity Omega while U vortices exist for Omega sufficiently large. We compute the energy of the various configurations with several vortices and study the three-dimensional structure of vortices.