NEW PADE APPROXIMATIONS FOR THE FREE CHARGES IN 2-COMPONENT STRONGLY COUPLED PLASMAS BASED ON THE UNSOLD-BERLIN-MONTROLL ASYMPTOTICS

Based on the available analytical formulae for the physical properties of the free charges in the quasi-classical density-temperature region new Pade approximations are derived. In the quasi-classical region th e thermodynamical functions are at strong coupling determined by a Lin ear dependence on the Gamma-parameter, similar as for the strongly cou pled electron gas. The existing Pade approximations for strongly coupl ed plasmas are modified in such a way that in the quasi-classical regi on the correct asymptotics is obtained. Based on the slope predicted b y the Unsold theory, by the Berlin-Montroll theory or corresponding th eories with linear Gamma asymptotics including corrections, concrete e xpressions are obtained and compared with other analytical approaches that neglect this case of asymptotics. (C) 1998 Elsevier Science B.V.