The viscosity of liquid helium

Coefficients of the second viscosity in thin liquid-helium films.

Coefficients of the second viscosity in bulk liquid helium.

Coefficient of first viscosity via three-phonon processes in bulk liquid helium.

The Scattering of Light from Liquid Helium

A review is given of the scattering of light by superfluid helium. A brief discussion is given first of the theory of Brillouin and Rayleigh scattering from an ordinary simple pure liquid. It is shown how this discussion must be modified in the case of the superfluid phase of purc 4He, and experimental observations of Brillouin scattering from first sound in liquid helium are described. The dis...

The Hydro - Kinetic Theory of Liquid Helium

In Part I the kinetic theory of excitations in flowing liquid He II is deve loped to a higher order than that carried out previously, by Landau and Khalatnikov, in order to demonstrate the existence of nonequilibrium terms of a new nature in the hydrodynamic equations. It is then shown that these terrns can lead to spontaneous destabilization in counter currents when the relative velocity of th...