An accurate intermolecular potential for helium

摘要: A simple realistic and precise empirical intermolecular potential is proposed for helium. It possesses nearly the correct Hartree–Fock repulsion as well long range behavior. was fitted to recent accurate intermediate temperature second virial coefficients thermal conductivity data high viscosity values. able predict over an extended from 1.5 1475 K. Above 100 K it reproduces substantially all of transport properties within experimental error in a manner superior other potentials existence. Below where are less reliable, produces good representation isotopic differences viscosity. also predicts differential cross sections reasonably well. In spite few remaining discrepancies, when different macroscopic considered, best helium interaction available at this time.