囚禁波场中的整体相连涡团
Globally-Linked Vortex Clusters in Trapped Wave Fields
摘要：
我们提出了一个丰富的各种各样的完全稳定的涡结构，称为H-集群，由越来越多的涡嵌套在近轴波场限制捕获潜力。然而，我们表明，组成的漩涡是全球性的联系，而不是独立的漩涡的产品。此外，它们总是以单极全局波前为特征，并且存在于非线性系统中，例如玻色-爱因斯坦凝聚体。具有多极全球波前的集群是不稳定的，或者充其量是翻转的。
英文摘要：
We put forward the existence of a rich variety of fully stationary vortex structures, termed H-clusters, made of an increasing number of vortices nested in paraxial wave fields confined by trapping potentials. However, we show that the constituent vortices are globally linked, rather than products of independent vortices. Also, they always feature a monopolar global wave front and exist in nonlinear systems, such as Bose-Einstein condensates. Clusters with multipolar global wave fronts are non-stationary or at best flipping.
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