Three-Phonon Process and the Propagation of Sound in Liquid Helium-4
- 18 September 1967
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 19 (12), 690-692
- https://doi.org/10.1103/physrevlett.19.690
Abstract
The current theoretical formulations of the three-phonon mechanism for the velocity dispersion and for the attenuation of sound in liquid He-4 are shown to be incompatible with new experimental data presented here.Keywords
This publication has 6 references indexed in Scilit:
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- Single-Collision-Time Theory of Sound Propagation in LiquidHe4below 0.6°KPhysical Review B, 1967
- On the attenuation of sound in liquid heliumPhysica, 1966
- Measurements of the Ultrasonic Attenuation in Liquidat Low TemperaturesPhysical Review Letters, 1966
- Theory of ultrasonic attenuation and second sound in insulatorsSolid State Communications, 1965
- Velocity of Sound in Liquid Helium at Low TemperaturesPhysical Review Letters, 1962