Finite-Basis-Set Approach to the Dirac-Hartree-Fock Equations

Abstract
A variational Dirac-Hartree-Fock procedure is introduced, which does not exhibit problems of spurious roots, variational collapse, or continuum dissolution. The optimized eigenvalues converge uniformly from above to the numerical Dirac-Hartree-Fock results as the dimension of the basis set is increased. Results for the 1s2, 2s2, and 2p122 shells are presented as examples.

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