Characterization of N-representable n-particle densities when N is infinite

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Abstract

We have found necessary and sufficient conditions for the n-particle density to be N-representable for infinite A, if n is even. There are some mild restrictions on the one-density for these conditions to apply. The method is based on the Mercer expansion theorem. We suggest a simple method for total energy calculations based on this characterization also if the number of particles is finite. (c) 2005 Elsevier B.V. All rights reserved.

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  • Condensed Matter Physics
Original languageEnglish
Pages (from-to)521-523
JournalChemical Physics Letters
Volume417
Issue number4-6
Publication statusPublished - 2006
Publication categoryResearch
Peer-reviewedYes