representability of electron density and first-order density matrix
- 1 October 1982
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 26 (4) , 1845-1847
- https://doi.org/10.1103/physreva.26.1845
Abstract
For noninteracting fermions, some explicit examples using first-order density matrices built from orthonormal orbitals like those of Harriman are first summarized, and the relation to the Thomas-Fermi statistical theory is emphasized. The relation of Harriman's work for interacting fermions to some exact properties of the first-order density matrix for atoms and molecules is considered.Keywords
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