Superfluid Vortex, Trapping Neutral Impurities
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概要
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Structure and energy of a superfluid vortex line and a neutral impurity (He^3) trapped by it are investigated in the Hartree-Fock approximation. In dilute gas the shape of the impurity is prolatc along the vortex line, while in dense gas it becomes more spherical. In liquid helium the ratio of the axes is estimated at √<0.842> and the binding energy at 3.5°K. A rough estimate of the saturation density is given. It is pointed out that at this density the tension has decreased to 60% of that in pure He^4.
- 理論物理学刊行会の論文
- 1969-06-25
著者
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Ohmi Tetsuo
Depart Of Physics Kyoto University
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Usui Tunemaru
Department Of Physics Nagoya University
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