Dynamic ion-ion structure factor of strongly coupled hydrogen plasmas at arbitrary degeneracies

Publisher Website
Google Scholar
Abstract
Results are reported for the dynamic structure factor S(kω) for ions in the hitherto theoretically inaccessible regime of strongly coupled partially degenerate hydrogen plasmas where the electron-ion interaction is not weak. Results from density-functional theory and molecular dynamics have been used to provide a rigorous approach which avoids linear-response approximations or the construction of pseudopotentials. The results are discussed in terms of a microscopic theory and a hydrodynamic model. Values of the sound velocity, thermal diffusivity, the specific-heat ratio, and the viscosity for these plasmas are reported.