The Transport of Liquid Helium

Transport properties of normal liquid helium: comparison of various methodologies.

We revisit the problem of self-diffusion in normal liquid helium above the lambda transition. Several different methods are applied to compute the velocity autocorrelation function. Since it is still impossible to determine the exact result for the velocity autocorrelation function from simulation, we appeal to the computation of short-time moments to determine the accuracy of the different app...

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...

Neutron reflection from the liquid helium surface

Vortex Photography in Liquid Helium

The study of quantized vortex lines has been advanced hy the technique of vortex photography. This paper prov~dex an overview of the information which has been acquired thus far from this method. Stationary cortex states are ohser\ed which are very similar to those predicted from theory. In addition types of dynamical phenomena are observed. such a\ collective oscillations and the acceleration ...