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High-density correlation energy expansion of the one-dimensional uniform electron gas

Loos, Pierre-François


We show that the expression of the high-density (i.e., small-r s ) correlation energy per electron for the one-dimensional uniform electron gas can be obtained by conventional perturbation theory and is of the form εc(r s ) = −π2/360 + 0.00845 r s + …, where r s is the average radius of an electron. Combining these new results with the low-density correlation energy expansion, we propose a local-density approximation correlation functional, which deviates by a maximum of 0.1 mhartree compared...[Show more]

CollectionsANU Research Publications
Date published: 2013-02-14
Type: Journal article
Source: Journal of Chemical Physics
DOI: 10.1063/1.4790613


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