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Vortex creation in the expansion of He-II from just below the lambda transition

  • Liquid Helium
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Czechoslovak Journal of Physics Aims and scope

Abstract

Quantised vortices are created when HeII is expanded from a point close to, but slightly (≈3mK) below, the lambda transition. It is believed that these probably arise through conventional flow processes, caused by non-idealities in the design of the expansion system. Their density is smaller than that of vortices created via the Kibble mechanism in expansions passing through the transition; nonetheless, their presence inevitably reduces the accuracy of the latter experiments for modeling cosmic string creation. An investigation of the phenomenon with improved bolometry, is described and discussed.

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Authors and Affiliations

  1. School of Physics and Chemistry, Lancaster University, LA1 4YB, Lancaster, UK

    M. E. Dodd, P. C. Hendry, N. S. Lawson, R. A. M. Lee & P. V. E. McClintock

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  1. M. E. Dodd
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  2. P. C. Hendry
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  3. N. S. Lawson
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  4. R. A. M. Lee
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  5. P. V. E. McClintock
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Dodd, M.E., Hendry, P.C., Lawson, N.S. et al. Vortex creation in the expansion of He-II from just below the lambda transition. Czech J Phys 46 (Suppl 1), 43–44 (1996). https://doi.org/10.1007/BF02569437

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  • DOI: https://doi.org/10.1007/BF02569437

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