About cookies on this site Our websites require some cookies to function properly (required). In addition, other cookies may be used with your consent to analyze site usage, improve the user experience and for advertising. For more information, please review your options. By visiting our website, you agree to our processing of information as described in IBM’sprivacy statement. To provide a smooth navigation, your cookie preferences will be shared across the IBM web domains listed here.
Publication
Physical Review
Paper
Atomic Bethe-Goldstone equations. II. The Ne atom
Abstract
The nonrelativistic electronic energy of Ne(S1) is computed by the variational solution of generalized Bethe-Goldstone (BG) equations. The sum of all two-particle net energy increments (pair correlation energies) is -0.3822 atomic units (a.u.), or 97.3% of the empirical correlation energy. The three- and four-particle net energy terms expected to be most important are computed and found to be smaller than 0.001 a.u. The computed pair correlation energies are analyzed in terms of symmetries induced in the BG equations, and are found to be represented well within the accuracy of the present calculations by the somewhat smaller number of parameters needed to characterize the L and S eigenstates of all possible eight-particle subsystems of the ten-electron Hartree-Fock reference state. © 1967 The American Physical Society.