Dynamic structure of strongly coupled one-component plasmas

We study the dynamic behavior of the strongly coupled one-component classical plasmas by calculating a dynamic structure factor for various coupling strengths and momentum transfers in terms of the dynamically convergent calculation method recently developed. It is shown that the dynamically convergent calculation yields fast convergence, especially at large momentum transfer. We analyze the molecular-dynamics data for an intermediate momentum transfer at which the origin of the peak of power spectrum may be unclear, and show which elementary excitation is responsible for the peak. Our analysis also shows the disappearing process of plasma oscillation.