在超流体II中的三重环结构
D Kivotides1, C F Barenghi, D C Samuels
1Mathematics Department, University of Newcastle, Newcastle upon Tyne NE1 7RU, UK.
概括
二旋环不仅仅是超流体物体. 计算显示它们是连贯的结构,包括一个超流体环和两个相反极性的同轴正常流体环.
科学领域:
- 流体动力学 流体动力学
- 低温物理 低温物理
- 量子流体是一种量子流体.
背景情况:
- 超流体,如II,由于其两部分性质,表现出复杂的行为:正常流体和超流体.
- 之前的II旋环模型主要集中在超流体组件上,忽视了正常流体的动态.
研究的目的:
- 为了研究二旋环中的正常流体和超流体组件的合运动.
- 为了阐明二旋环的完整结构和动态.
主要方法:
- 使用了三维数值计算.
- 该研究模拟了正常流体和超流体组件的相互穿透运动.
主要成果:
- 二旋环被证明是由一个中心的超流体旋环组成的.
- 两个同轴的正常流体环,与超流体环相反的极性,伴随着超流体组件.
- 这三个旋环形成了一个单一的,连贯的,消散的结构.
结论:
- 传统的II旋环视为纯超流体的观点是不完整的.
- 正常和超流体组件的合动力学对于理解II的环行为至关重要.
- 二旋环是复杂的,多元件的消散结构.
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