Mode-coupling effects in simple fluids measured by neutron scattering

Summary After a summary of the relevant results from mode-coupling theory a review is given of the neutron scattering experiments that have given direct evidence for the existence of mode-coupling effects in simple fluids. The problem of determining the velocity autocorrelation function from neutron data is discussed in connection with experimental data on liquid sodium and on high-density hydrogen. Paper presented at the workshop ?Highlights on Simple Liquids?, held in Turin at ISI on 1–3 May, 1989.