论文标题
在二元玻色中的巨大涡流的直接和反向进动
Direct and reverse precession of a massive vortex in a binary Bose--Einstein condensate
论文作者
论文摘要
使用将两种组分玻色的二维模型在数值和分析上研究了填充的巨大涡流的动力学，这些模型被困在谐波陷阱中。该凝结物表现出相位分离。在耦合的总框架 - 彼得斯基方程的框架中，证明，在非线性相互作用的一定范围内，中心周围足够大的涡流的进攻很大，甚至会进一步增加质量的方向。得出一个近似的普通微分方程，可以解释系统的这种行为。
The dynamics of a filled massive vortex is studied numerically and analytically using a two-dimensional model of a two-component Bose--Einstein condensate trapped in a harmonic trap. This condensate exhibits phase separation. In the framework of the coupled Gross--Pitaevskii equations, it is demonstrated that, in a certain range of parameters of the nonlinear interaction, the precession of a sufficiently massive vortex around the center is strongly slowed down and even reverses its direction with a further increase in the mass. An approximate ordinary differential equation is derived that makes it possible to explain this behavior of the system.
