Research Papers in Physics and Astronomy


Date of this Version

February 1969


Published by American Institute of Physics. J. Chemical Physics 50, 1214 (1969). ©1969 American Institute of Physics. Permission to use.


Calculations of the energy of H2 have been performed using both the projected Hartree–Fock (PHF) method and a full CI method in the same basis for comparison of the two methods. It is discovered that PHF can account for 86% of the correlation energy, whereas CI will account for 88% of the correlation energy. ©1969 American Institute of Physics

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