‘‘Onsager-molecule’’ approach to liquid structure: The one-component plasma in two and three dimensions

Abstract
The structure of the strongly coupled uniform one-component plasma (OCP) in two and three dimensions and the density profile of a three-dimensional OCP near a hard wall are calculated by the ‘‘Onsager-molecule’’ approach. We demonstrate that the structure of a strongly coupled plasma can be calculated very accurately (nearly within the simulation uncertainty) by employing only the leading term in the strong-coupling expansion of the bridge function.