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Measurements on the generation and subsequent decay of vorticity in superfluid He-3-B

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Published

Standard

Measurements on the generation and subsequent decay of vorticity in superfluid He-3-B. / Bradley, D.I.; Fisher, Shaun; Hayes, WM.
COSMO-97: First International Workshop on Particle Physics and the Early Universe. ed. / L Roszkowski. Singapore: World Scientific, 1998. p. 432-434.

Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

Harvard

Bradley, DI, Fisher, S & Hayes, WM 1998, Measurements on the generation and subsequent decay of vorticity in superfluid He-3-B. in L Roszkowski (ed.), COSMO-97: First International Workshop on Particle Physics and the Early Universe. World Scientific, Singapore, pp. 432-434, 1st International Workshop on Particle Physics and the Early Universe (COSMO-97), AMBLESIDE, 15/09/97.

APA

Bradley, D. I., Fisher, S., & Hayes, WM. (1998). Measurements on the generation and subsequent decay of vorticity in superfluid He-3-B. In L. Roszkowski (Ed.), COSMO-97: First International Workshop on Particle Physics and the Early Universe (pp. 432-434). World Scientific.

Vancouver

Bradley DI, Fisher S, Hayes WM. Measurements on the generation and subsequent decay of vorticity in superfluid He-3-B. In Roszkowski L, editor, COSMO-97: First International Workshop on Particle Physics and the Early Universe. Singapore: World Scientific. 1998. p. 432-434

Author

Bradley, D.I. ; Fisher, Shaun ; Hayes, WM. / Measurements on the generation and subsequent decay of vorticity in superfluid He-3-B. COSMO-97: First International Workshop on Particle Physics and the Early Universe. editor / L Roszkowski. Singapore : World Scientific, 1998. pp. 432-434

Bibtex

@inproceedings{05dac6526fe9404483e86882e7a40b86,
title = "Measurements on the generation and subsequent decay of vorticity in superfluid He-3-B",
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 first observations on the production and decay of this vorticity in superfluid He-3-B at temperatures down to similar to 110 mu K. We detect the heat evolution of the decaying vorticity after neutron irradiation of a small superfluid He-3-B sample. We interpret the decay process in terms of a simple exponential time constant which varies inversely proportional to the quasiparticle excitation number density in the superfluid. We also observe that the fraction of the neutron energy deposited in the vorticity is consistent with the earlier measurements which supported the Kibble-Zurek hypothesis.",
author = "D.I. Bradley and Shaun Fisher and WM Hayes",
year = "1998",
language = "English",
isbn = "9789810235277 ",
pages = "432--434",
editor = "L Roszkowski",
booktitle = "COSMO-97",
publisher = "World Scientific",
note = "1st International Workshop on Particle Physics and the Early Universe (COSMO-97) ; Conference date: 15-09-1997 Through 19-09-1997",

}

RIS

TY - GEN

T1 - Measurements on the generation and subsequent decay of vorticity in superfluid He-3-B

AU - Bradley, D.I.

AU - Fisher, Shaun

AU - Hayes, WM

PY - 1998

Y1 - 1998

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 first observations on the production and decay of this vorticity in superfluid He-3-B at temperatures down to similar to 110 mu K. We detect the heat evolution of the decaying vorticity after neutron irradiation of a small superfluid He-3-B sample. We interpret the decay process in terms of a simple exponential time constant which varies inversely proportional to the quasiparticle excitation number density in the superfluid. We also observe that the fraction of the neutron energy deposited in the vorticity is consistent with the earlier measurements which supported the Kibble-Zurek hypothesis.

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 first observations on the production and decay of this vorticity in superfluid He-3-B at temperatures down to similar to 110 mu K. We detect the heat evolution of the decaying vorticity after neutron irradiation of a small superfluid He-3-B sample. We interpret the decay process in terms of a simple exponential time constant which varies inversely proportional to the quasiparticle excitation number density in the superfluid. We also observe that the fraction of the neutron energy deposited in the vorticity is consistent with the earlier measurements which supported the Kibble-Zurek hypothesis.

M3 - Conference contribution/Paper

SN - 9789810235277

SP - 432

EP - 434

BT - COSMO-97

A2 - Roszkowski, L

PB - World Scientific

CY - Singapore

T2 - 1st International Workshop on Particle Physics and the Early Universe (COSMO-97)

Y2 - 15 September 1997 through 19 September 1997

ER -