Phase-slips in the flow of superfluid 4He through a submicron orifice

Ajay Amar; J. C. Davis; R. E. Packard; R. L. Lozes

doi:10.1016/S0921-4526(90)81226-E

Phase-slips in the flow of superfluid ⁴He through a submicron orifice

Ajay Amar
, J. C. Davis
, R. E. Packard
, R. L. Lozes

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

Abstract

We have constructed a 6 Hz Helmholtz oscillator to study phase-slip phenomena in superfluid ⁴He. This method was pioneered by Zimmermann (1-2) and by Avenel and Varoquaux (3-6). A superconducting displacement transducer employing a D.C. SQUID and capable of resolving a displacement of 2 x 10^-13 m in one second is used. We report preliminary flow studies at 0.3K using a slit with cross-sectional dimensions of 0.4μ × 4.6μ and 0.08μ length. We detect sudden dissipation events, the smallest being consistent with phase-slips of 2π .

Original language	English
Pages (from-to)	753-754
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	165-166
Issue number	PART 1
DOIs	https://doi.org/10.1016/S0921-4526(90)81226-E
Publication status	Published - Aug 1990
Externally published	Yes

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title = "Phase-slips in the flow of superfluid 4He through a submicron orifice",

abstract = "We have constructed a 6 Hz Helmholtz oscillator to study phase-slip phenomena in superfluid 4He. This method was pioneered by Zimmermann (1-2) and by Avenel and Varoquaux (3-6). A superconducting displacement transducer employing a D.C. SQUID and capable of resolving a displacement of 2 x 10-13 m in one second is used. We report preliminary flow studies at 0.3K using a slit with cross-sectional dimensions of 0.4μ × 4.6μ and 0.08μ length. We detect sudden dissipation events, the smallest being consistent with phase-slips of 2π .",

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AU - Amar, Ajay

AU - Davis, J. C.

AU - Packard, R. E.

AU - Lozes, R. L.

PY - 1990/8

Y1 - 1990/8

N2 - We have constructed a 6 Hz Helmholtz oscillator to study phase-slip phenomena in superfluid 4He. This method was pioneered by Zimmermann (1-2) and by Avenel and Varoquaux (3-6). A superconducting displacement transducer employing a D.C. SQUID and capable of resolving a displacement of 2 x 10-13 m in one second is used. We report preliminary flow studies at 0.3K using a slit with cross-sectional dimensions of 0.4μ × 4.6μ and 0.08μ length. We detect sudden dissipation events, the smallest being consistent with phase-slips of 2π .

AB - We have constructed a 6 Hz Helmholtz oscillator to study phase-slip phenomena in superfluid 4He. This method was pioneered by Zimmermann (1-2) and by Avenel and Varoquaux (3-6). A superconducting displacement transducer employing a D.C. SQUID and capable of resolving a displacement of 2 x 10-13 m in one second is used. We report preliminary flow studies at 0.3K using a slit with cross-sectional dimensions of 0.4μ × 4.6μ and 0.08μ length. We detect sudden dissipation events, the smallest being consistent with phase-slips of 2π .

UR - https://www.scopus.com/pages/publications/0025465995

U2 - 10.1016/S0921-4526(90)81226-E

DO - 10.1016/S0921-4526(90)81226-E

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SN - 0921-4526

VL - 165-166

SP - 753

EP - 754

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART 1

ER -

Phase-slips in the flow of superfluid ⁴He through a submicron orifice

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