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Vortex production in helium.

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<mark>Journal publication date</mark>29/01/1987
Issue number6103
Number of pages2
Pages (from-to)387-388
Publication StatusPublished
<mark>Original language</mark>English


The celebrated frictionless flow properties acquired by liquid helium at very low temperatures have long been known to vanish abruptly if the velocity of the liquid exceeds a certain critical value. The physical mechanism underlying this breakdown of the superfluidity has, however, remained an enigma, and it is pleasing, therefore, that a possible solution to this important and long-standing problem has now been proposed by K.W. Schwarz of IBM (Physical Review Letters 57, 1448; 1986).