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arXiv 1508.01697cond-mat.quant-gas
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旋转玻色-爱因斯坦凝聚体中的稳定Hopf孤子

Stable Hopf solitons in rotating Bose-Einstein condensates

Y. M. Bidasyuk, A. V. Chumachenko, O. O. Prikhodko, S. I. Vilchinskii, M. Weyrauch, A. I. Yakimenko

摘要:

我们揭示了在旋转的原子玻色-爱因斯坦凝聚体中,霍普夫孤子是可以稳定的。Hopfion是一个带有两个独立缠绕数的物质波涡旋复合体。这样的拓扑孤子结构的结果从超流体流动的原子同时在极向和环向量子化。在一个耗散平均场模型的框架下,我们观察到不同的不稳定演化方案的Hopfions。在实验可行的条件下,我们证明了Hopf孤子的能量和动力学稳定性。

英文摘要:

We reveal that Hopf solitons can be stabilized in rotating atomic Bose-Einstein condensate. The Hopfion is a matter-wave vortex complex which carries two independent winding numbers. Such a topological solitonic structure results from a superfluid flow of atoms simultaneously quantized in poloidal and toroidal directions. In the framework of a dissipative mean-field model we observe different unstable evolution scenarios of the Hopfions. We demonstrate energetic and dynamical stability of the Hopf solitons under experimentally feasible conditions.

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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