PRECESSION OF A SINGLE VORTEX LINE IN SUPERFLUID HE-3-B

被引：34

作者：

ZIEVE, RJ

MUKHARSKY, Y

CLOSE, JD

DAVIS, JC

PACKARD, RE

机构：

[1] Department of Physics, University of California, Berkeley

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.68.1327

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This paper reports the discovery of a new vortex phenomenon in superfluid He-3-B. A single filament of quantized vortex line precesses as a solid body around a wire extending along the axis of a cylinder. The precession frequency equals the angular velocity of the apparatus at which the presence of a single quantum of circulation minimizes the system's free energy. The period of precession is related to the circulation quantum and the dimensions of the apparatus. Thus a measurement of the precession period is an accurate determination of the quantum unit. We find kappa = (1.02 +/- 0.03)h/2m3, where m3 is the mass of the He-3 atom.

引用

页码：1327 / 1331

页数：5

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