OBSERVATION OF QUANTIZED CIRCULATION IN SUPERFLUID HE-3-B

被引：32

作者：

DAVIS, JC

CLOSE, JD

ZIEVE, R

PACKARD, RE

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 1991年 / 66卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.66.329

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the first observation of quantized circulation in superfluid He-3-B. The apparatus consists of a straight vibrating wire immersed in liquid He-3, which is cooled by a rotating nuclear demagnetization cryostat. The experiment is carried out at about 250-mu-K. The superfluid at this temperature is in the ballistic quasiparticle regime. Circulation around the wire is found to be stable only when it takes on the values - h/2m3, 0, and + h/2m3, where h is Planck's constant and m3 is the mass of the He-3 atom. This experiment confirms that superfluid He-3-B is a Cooper-paired superfluid with a macroscopic quantum wave function.

引用

页码：329 / 332

页数：4

共 25 条

[1] GENERALIZED BARDEEN-COOPER-SCHRIEFFER STATES AND PROPOSED LOW-TEMPERATURE PHASE OF LIQUID HE3 [J].