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Measuring the decay of vorticity in superfluid He-3-B: a progress report

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Measuring the decay of vorticity in superfluid He-3-B: a progress report. / Bradley, Ian; Fisher, SN; Hayes, WM et al.
In: Journal of Low Temperature Physics, Vol. 113, No. 5-6, 12.1998, p. 687-692.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Bradley, I, Fisher, SN, Hayes, WM & Bradley, I 1998, 'Measuring the decay of vorticity in superfluid He-3-B: a progress report', Journal of Low Temperature Physics, vol. 113, no. 5-6, pp. 687-692. https://doi.org/10.1023/A:1022549327011

APA

Bradley, I., Fisher, SN., Hayes, WM., & Bradley, I. (1998). Measuring the decay of vorticity in superfluid He-3-B: a progress report. Journal of Low Temperature Physics, 113(5-6), 687-692. https://doi.org/10.1023/A:1022549327011

Vancouver

Bradley I, Fisher SN, Hayes WM, Bradley I. Measuring the decay of vorticity in superfluid He-3-B: a progress report. Journal of Low Temperature Physics. 1998 Dec;113(5-6):687-692. doi: 10.1023/A:1022549327011

Author

Bradley, Ian ; Fisher, SN ; Hayes, WM et al. / Measuring the decay of vorticity in superfluid He-3-B : a progress report. In: Journal of Low Temperature Physics. 1998 ; Vol. 113, No. 5-6. pp. 687-692.

Bibtex

@article{84a058b59b1643ad807dc9a4def29162,
title = "Measuring the decay of vorticity in superfluid He-3-B: a progress report",
abstract = "Recent measurements in superfluid He-3-B have been interpreted as evidence in support of the Kibble-Zurek hypothesis for the formation of defects in the early Universe. The superfluid He-3 analogue to the cosmic string is the quantum vortex:. We report here the preliminary attempts to detect the heat evolution from the decay of this vorticity in superfluid He-3-B at temperatures down to similar to 110 mu K. We produce vorticity by neutron irradiation of a small superfluid He-3-B sample and attempt to measure the heat released as the vorticity decays. We detect a long time scale heart release and find that the lifetime of this decay varies inversely proportional to the quasiparticle excitation number density in the superfluid. However, we have yet to be convinced that this heat is from the decay of vorticity.",
keywords = "DETECTOR",
author = "Ian Bradley and SN Fisher and WM Hayes and Ian Bradley",
year = "1998",
month = dec,
doi = "10.1023/A:1022549327011",
language = "English",
volume = "113",
pages = "687--692",
journal = "Journal of Low Temperature Physics",
issn = "0022-2291",
publisher = "SPRINGER/PLENUM PUBLISHERS",
number = "5-6",
note = "International Symposium on Quantum Fluids and Solids (QFS98) ; Conference date: 09-06-1998 Through 14-06-1998",

}

RIS

TY - JOUR

T1 - Measuring the decay of vorticity in superfluid He-3-B

T2 - International Symposium on Quantum Fluids and Solids (QFS98)

AU - Bradley, Ian

AU - Fisher, SN

AU - Hayes, WM

AU - Bradley, Ian

PY - 1998/12

Y1 - 1998/12

N2 - Recent measurements in superfluid He-3-B have been interpreted as evidence in support of the Kibble-Zurek hypothesis for the formation of defects in the early Universe. The superfluid He-3 analogue to the cosmic string is the quantum vortex:. We report here the preliminary attempts to detect the heat evolution from the decay of this vorticity in superfluid He-3-B at temperatures down to similar to 110 mu K. We produce vorticity by neutron irradiation of a small superfluid He-3-B sample and attempt to measure the heat released as the vorticity decays. We detect a long time scale heart release and find that the lifetime of this decay varies inversely proportional to the quasiparticle excitation number density in the superfluid. However, we have yet to be convinced that this heat is from the decay of vorticity.

AB - Recent measurements in superfluid He-3-B have been interpreted as evidence in support of the Kibble-Zurek hypothesis for the formation of defects in the early Universe. The superfluid He-3 analogue to the cosmic string is the quantum vortex:. We report here the preliminary attempts to detect the heat evolution from the decay of this vorticity in superfluid He-3-B at temperatures down to similar to 110 mu K. We produce vorticity by neutron irradiation of a small superfluid He-3-B sample and attempt to measure the heat released as the vorticity decays. We detect a long time scale heart release and find that the lifetime of this decay varies inversely proportional to the quasiparticle excitation number density in the superfluid. However, we have yet to be convinced that this heat is from the decay of vorticity.

KW - DETECTOR

U2 - 10.1023/A:1022549327011

DO - 10.1023/A:1022549327011

M3 - Journal article

VL - 113

SP - 687

EP - 692

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 5-6

Y2 - 9 June 1998 through 14 June 1998

ER -