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Exchange-correlation energy densities for two-dimensional systems from quantum dot ground-states

Andreas Wensauer, Ulrich Rössler

cond-mat.mes-hallarXiv:cond-mat/0307529

Abstract

In this paper we present a new approach how to extract polarization-dependent exchange-correlation energy densities for two-dimensional systems from reference densities and energies of quantum dots provided by exact diagonalization. Compared with results from literature we find systematic corrections for all polarizations in the regime of high densities.

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