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Whistles from superfluid helium.

McClintock, Peter V. E. (1997) Whistles from superfluid helium. Nature, 388 (6641). pp. 421-422. ISSN 0028-0836

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On page 449 of this issue1, Pereverzev et al. report mechanical oscillations spontaneously generated by two weakly coupled volumes of superfluid 3He - providing a direct demonstration of its large scale quantum behaviour. At very low temperatures all materials tend to fall into highly ordered states. Most commonly, this order takes the form of perfect crystals, but there are exceptions. Most strikingly, the two isotopes of helium (3He and 4He) never solidify at all under their vapour pressures. Rather, they stay liquid to the lowest temperatures attainable, and are assumed to remain so right down to absolute zero.

Item Type: Journal Article
Journal or Publication Title: Nature
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 32951
Deposited By: Professor P. V. E. McClintock
Deposited On: 29 Apr 2010 17:01
Refereed?: No
Published?: Published
Last Modified: 10 Apr 2018 03:26
Identification Number:

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