Three-body potential and third virial coefficients for helium including relativistic and nuclear-motion effects
Jakub Lang, Giovanni Garberoglio, Michał Przybytek, Małgorzata Jeziorska, Bogumił Jeziorski
Abstract
≤ 9 for the post-Born-Oppenheimer corrections. We also developed a short-range analytic function describing the local behavior of the total uncertainty of the computed three-body interaction energies. Using both fits we calculated the third pressure and acoustic virial coefficients for helium and their uncertainties for a wide range of temperatures. The results of these calculations were compared with available experimental data and with previous theoretical determinations. The estimated uncertainties of present calculations are 3-5 times smaller than those reported in the best previous works.
Topics & Concepts
Virial coefficientPhysicsHeliumMotion (physics)Virial expansionVirial massHelium-4Virial theoremClassical mechanicsNuclear physicsAtomic physicsQuantum electrodynamicsThermodynamicsQuantum mechanicsGalaxyAdvanced Chemical Physics StudiesQuantum, superfluid, helium dynamicsAtomic and Molecular Physics