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Prog. Theor. Phys. Vol. 41 No. 6 (1969) pp. 1401-1415

Superfluid Vortex, Trapping Neutral Impurities

Tetsuo Ohmi and Tunemaru Usui

Department of Physics, Nagoya University, Nagoya

(Received February 24, 1969)

Abstract:

Structure and energy of a superfluid vortex line and a neutral impurity (He³) trapped by it are investigated in the Hartree-Fock approximation. In dilute gas the shape of the impurity is prolate 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 He⁴.

URL : http://ptp.ipap.jp/link?PTP/41/1401/
DOI : 10.1143/PTP.41.1401

[ Full Text PDF : FREE ACCESS (671K) ] Citation: Plain Text BiBTeX EndNote(RIS) RSS

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References:

1. V. L. Ginzburg and L. P. Pitaevskii, ZETF 34 (1958), 1240.
2. A. L. Fetter, Phys. Rev. 138 (1965), A429[APS].
3. H. E. Hall, Proc. Roy. Soc. A 245 (1958), 546.
   E. S. R. Gopal, Ann. of Phys. 29 (1964), 350[CrossRef].

Citing Article(s) :

1. Progress of Theoretical Physics Vol. 45 No. 1 (1971) pp. 36-41 :

   Surface Structure of Liquid Helium 4

   J. Lekner

2. Progress of Theoretical Physics Vol. 45 No. 1 (1971) pp. 42-49 :

   Theory of Vortex Lines in Liquid Helium 4

   J. Lekner

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