... electrons1
According to the antisymmetry principle for fermions, of which the Pauli principle  is a direct result.
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... way.2
Some texts talk about the average'' electron repulsion term in the Fock operator; I find this misleading in that Hartree-Fock uses the same instantaneous interelectron repulsion term as CI--it's the same Hamiltonian! The restriction to a single Slater determinant is what causes the averaging of interelectron repulsions.
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... expect!3
However, state-of-the-art determinant-based CI algorithms often include computational simplifications if the Ms = 0 component is used [16].
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...).4
Reference [28] contains a minor mistake, giving (pq|rs) as .
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... spin-orbitals.5
In the determinant CI expansion, we restrict all determinants to a single value of Ms.
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...+1.6
This differs somewhat from Duch [27], who sometimes uses to denote the arc entering vertex (e, o) in reverse-lexical addressing.
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C. David Sherrill
2000-04-18