A procedure for obtaining lower bounds for ground state energies of atoms and molecules |
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Authors: | M. Bersohn M. Glicksohn J. Stewart |
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Affiliation: | (1) Chemistry Department, University of Toronto, Canada |
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Abstract: | Using Löwdin's partition method we have re-derived the D. Weinstein lower bound, E > H11 - . By the same method, plus the assumption that the calculated first excited state energy is lower than a certain weighted average of approximate energies of all the excited states, we have derived a moderately better lower bound. |
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