Spatially-partitioned many-body vortices
Spatially-partitioned many-body vortices
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DOI：
10.1088/1742-6596/691/1/012015
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发表时间：
2014-12
期刊：
影响因子：
--
通讯作者：
S. Klaiman;O. Alon
中科院分区：
文献类型：
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作者：
S. Klaiman;O. Alon
玻色-爱因斯坦凝聚体中的涡旋是一个局部化的物体，看起来很像一个小型的龙卷风。这是很好地描述了平均场理论。在目前的工作中，我们超越了目前的范式，并介绍了多体涡。它们是由空间分隔的云组成的，带有确定的总角动量，是碎片而不是凝聚的物体，只能在平均场理论之外描述。基于平均场模型的相图有助于预测多体涡发生的参数。简要讨论了影响。
A vortex in Bose-Einstein condensates is a localized object which looks much like a tiny tornado storm. It is well described by mean-field theory. In the present work we go beyond the current paradigm and introduce many-body vortices. These are made of spatially- partitioned clouds, carry definite total angular momentum, and are fragmented rather than condensed objects which can only be described beyond mean-field theory. A phase diagram based on a mean-field model assists in predicting the parameters where many-body vortices occur. Implications are briefly discussed.