Light Scattering in Superfluid Helium Under Pressure
- 28 June 1971
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 26 (26) , 1623-1626
- https://doi.org/10.1103/physrevlett.26.1623
Abstract
We report here a calculation, based on Landau's hydrodynamical equations, of the intensities of the Brillouin spectral components due to density (first-sound) and entropy (second-sound) fluctuations in pure He II under pressure. In the hydrodynamic regime of temperature, the intensities of second-sound Brillouin components are found to be as strong as one tenth of those of the first-sound components under optimum pressure.Keywords
This publication has 9 references indexed in Scilit:
- Scattering of light from entropy fluctuations in 3He–4He mixturesCanadian Journal of Physics, 1968
- Microscopic theory of superfluid heliumAnnals of Physics, 1965
- Doppler Shifts in Light Scattering from Pure Liquids and Polymer SolutionsThe Journal of Chemical Physics, 1964
- The molar volume and expansion coefficient of liquid He4Annals of Physics, 1964
- Hydrodynamic equations and correlation functionsAnnals of Physics, 1963
- The absorption of sound in liquid helium IIProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1958
- Гидродинамика гелия IIUspekhi Fizicheskih Nauk, 1956
- FIRST SOUND IN LIQUID HELIUM AT HIGH PRESSURESCanadian Journal of Physics, 1953
- Pressure Dependence of Second Sound Velocity in Liquid Helium. IIPhysical Review B, 1951