Abstract
Two‐particle “effective potentials,” which incorporate the quantum mechanical effects into the pair interaction potential, are evaluated accurately. Tables and graphs of these potentials between electron–proton, parallel spin electron–electron, antiparallel spin electron–electron, and proton–proton are presented for a wide range of temperatures. The range of validity and analytic properties of the effective potentials in certain regions are given. Possible uses of these potentials to evaluate thermodynamic properties and percentage ionization of the plasma are discussed.