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Universidad de Buenos Aires, RA-1428 Buenos Aires, and

By D. M. Jezek, M. Pi, M. Barranco, R. J. Lombard, M. Guilleumas, Consejo Nacional and Investigaciones Científicas Técnicas


The effect of ring vortices on the destabilization of supersaturated liquid helium mixtures at very low temperatures is investigated as a function of pressure. We have found that large ring vortices trigger the segregation of 3 He at smaller values of the concentration than small ring vortices. Our calculations indicate that the existence of ring vortices in the mixture is a possible mechanism to understand the rather small degree of critical supersaturation found in the experiments

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Year: 2008
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