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- aggregation classification "A1".
- aggregation creator B329544.
- aggregation creator B329545.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation date "2009".
- aggregation format "application/pdf".
- aggregation hasFormat 663344.bibtex.
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- aggregation isPartOf urn:issn:0021-9606.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Chemistry".
- aggregation title "Exact ionization potentials from wavefunction asymptotics: the extended Koopmans' theorem, revisited".
- aggregation abstract "A simple explanation is given for the exactness of the extended Koopmans' theorem, (EKT) for computing the removal energy of any many-electron system to the lowest-energy ground state ion of a given symmetry. In particular, by removing the electron from a "removal orbital" of appropriate symmetry that is concentrated in the asymptotic region, one obtains the exact ionization potential and the exact Dyson orbital for the corresponding state of the ion. It is argued that the EKT is not restricted to many-electron systems but holds for any finite many-body system, provided that the interaction vanishes for increasing interparticle distance. A necessary and sufficient condition for the validity of the EKT for any state (not just the lowest-energy states of a given symmetry) in terms of the third-order reduced density matrix is stated and derived.".
- aggregation authorList BK621593.
- aggregation issue "19".
- aggregation volume "130".
- aggregation aggregates 5787333.
- aggregation isDescribedBy 663344.
- aggregation similarTo 1.3130044.
- aggregation similarTo LU-663344.