Observation of quantized circulation in superfluid B3

J. C. Davis; J. D. Close; R. Zieve; R. E. Packard

doi:10.1103/PhysRevLett.66.329

Observation of quantized circulation in superfluid B3

J. C. Davis^*, J. D. Close, R. Zieve, R. E. Packard

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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Abstract

We report the first observation of quantized circulation in superfluid B3. The apparatus consists of a straight vibrating wire immersed in liquid He3, which is cooled by a rotating nuclear demagnetization cryostat. The experiment is carried out at about 250 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 Plancks constant and m3 is the mass of the He3 atom. This experiment confirms that superfluid B3 is a Cooper-paired superfluid with a macroscopic quantum wave function.

Original language	English
Pages (from-to)	329-332
Number of pages	4
Journal	Physical Review Letters
Volume	66
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.66.329
Publication status	Published - 1991

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10.1103/PhysRevLett.66.329

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title = "Observation of quantized circulation in superfluid B3",

abstract = "We report the first observation of quantized circulation in superfluid B3. The apparatus consists of a straight vibrating wire immersed in liquid He3, which is cooled by a rotating nuclear demagnetization cryostat. The experiment is carried out at about 250 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 Plancks constant and m3 is the mass of the He3 atom. This experiment confirms that superfluid B3 is a Cooper-paired superfluid with a macroscopic quantum wave function.",

author = "Davis, {J. C.} and Close, {J. D.} and R. Zieve and Packard, {R. E.}",

year = "1991",

doi = "10.1103/PhysRevLett.66.329",

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journal = "Physical Review Letters",

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AU - Davis, J. C.

AU - Close, J. D.

AU - Zieve, R.

AU - Packard, R. E.

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Y1 - 1991

N2 - We report the first observation of quantized circulation in superfluid B3. The apparatus consists of a straight vibrating wire immersed in liquid He3, which is cooled by a rotating nuclear demagnetization cryostat. The experiment is carried out at about 250 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 Plancks constant and m3 is the mass of the He3 atom. This experiment confirms that superfluid B3 is a Cooper-paired superfluid with a macroscopic quantum wave function.

AB - We report the first observation of quantized circulation in superfluid B3. The apparatus consists of a straight vibrating wire immersed in liquid He3, which is cooled by a rotating nuclear demagnetization cryostat. The experiment is carried out at about 250 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 Plancks constant and m3 is the mass of the He3 atom. This experiment confirms that superfluid B3 is a Cooper-paired superfluid with a macroscopic quantum wave function.

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EP - 332

JO - Physical Review Letters

JF - Physical Review Letters

IS - 3

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Observation of quantized circulation in superfluid B3

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