Quantum-statistical mechanics of a system of charged particles at high temperatures.

If a quantum-mechanical potential is introduced the calculation of the quantummechanical binary distribution function for a system with Coulomb interaction is reduced to the well-known mathematical formalism of classical statistical mechanics in the case of nλ≪1 (λ being the thermal wavelength). The two-particle quantummechanical potential is determined by the two-particle Slater sum. In this paper we calculated the two-particle Slater sum using an expansion according to e and the resolvent formalism. From the binary distribution function the correlation energy and the free energy as well were determined up to order e. Symmetry effects were taken into account. [ABSTRACT FROM AUTHOR]