Approximate Solution of the Representability Problem

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dc.creatorPanin, A. I.
dc.date1999-07-27
dc.date2001-02-25
dc.date.accessioned2026-07-07T05:57:11Z
dc.date.available2026-07-07T05:57:11Z
dc.descriptionApproximate solution of the ensemble representability problem for density operators of arbitrary order is obtained. This solution is closely related to the ``Q condition'' of A.J.Coleman. The representability conditions are formulated in orbital representation and are easy to use. They are tested numerically on the base of CI calculation of simple atomic and molecular systems. General scheme of construction of the contraction operator right inverses is proposed and the explicit expression for the right inverse associated with the expansion operator is derived as an example. Two algorithms for direct 2-density matrix determination are described.
dc.descriptionLaTeX2e, 45 pages; significantly revised
dc.identifierhttps://arxiv.org/abs/physics/9907045
dc.identifierhttp://arxiv.org/abs/physics/9907045
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/87888
dc.subjectChemical Physics
dc.subjectMathematical Physics
dc.subjectQuantum Physics
dc.titleApproximate Solution of the Representability Problem
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