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Decay of quantised vorticity by sound emission

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It is thought that in a quantum fluid sound generation is the sink of turbulent kinetic energy in the absence of any other dissipation mechanism near absolute zero. We show that a suitably trapped Bose-Einstein condensate provides a model system to study the sound emitted by accelerating vortices in a controlled way.

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Authors and Affiliations

  1. School of Mathematics, University of Newcastle, Newcastle upon Tyne, NE1 7RU, UK

    C. F. Barenghi

  2. Department of Physics, University of Durham, Durham, DH4 3LE, UK

    N.G. Parker, N.P. Proukakis & C.S. Adams

Authors
  1. C. F. Barenghi
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  2. N.G. Parker
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  3. N.P. Proukakis
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  4. C.S. Adams
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Additional information

PACS numbers: 03.75.Lm, 47.32.Cc, 67.40.Vs.

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Barenghi, C., Parker, N., Proukakis, N. et al. Decay of quantised vorticity by sound emission. J Low Temp Phys 138, 629–634 (2005). https://doi.org/10.1007/s10909-005-2272-5

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  • DOI: https://doi.org/10.1007/s10909-005-2272-5

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