超流~ 3 He-B中扭曲涡旋态的实验研究
Experiments on the twisted vortex state in superfluid 3He-B
摘要：
我们已经进行了测量和数值模拟上的一束涡线，这是扩大沿旋转柱的最初无涡3 He-B。膨胀的涡旋形成一个传播的前缘：在前缘内，超流体参与旋转，在前缘后面形成扭曲的涡旋状态，最终松弛到平衡涡旋状态。我们已经测量了扭曲的大小和它的松弛率作为温度的函数高于0.3Tc。我们还表明，完整的传播涡阵面的结果从轴向超流，诱导的扭曲。
英文摘要：
We have performed measurements and numerical simulations on a bundle of vortex lines which is expanding along a rotating column of initially vortex-free 3He-B. Expanding vortices form a propagating front: Within the front the superfluid is involved in rotation and behind the front the twisted vortex state forms, which eventually relaxes to the equilibrium vortex state. We have measured the magnitude of the twist and its relaxation rate as function of temperature above 0.3Tc. We also demonstrate that the integrity of the propagating vortex front results from axial superfluid flow, induced by the twist.
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