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'Rotons' in Quantum Hydrodynamics

✍ Scribed by Allcock, G. R.; Kuper, C. G.


Book ID
120146059
Publisher
The Royal Society
Year
1955
Tongue
English
Weight
868 KB
Volume
231
Category
Article
ISSN
0962-8444

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We report measurements of the roton second sound velocity and absorption at high pressure and low temperature. The velocity measurements show the existence of a dip over a very small range of temperature. Comparing this to the absorption measurements, we show that this dip corresponds to a pure roto