The effect of electron correlation on on
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Jesus M. Ugalde; Russell J. Boyd
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Article
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1985
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Elsevier Science
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English
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The density difference ED, defined as the difference between the exact and the Hertree-Fock radial density functions is reported for the 23S and the 2 'S exerted states of the helium atom. The density differences in both eeses resemble the inverse of the helium grow&state density drfference, but are