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arXiv · 1006.4144

Colle-Salvetti-type local density functional for the exchange-correlation energy in two dimensions

S. Sakiroglu·E. Rasanen
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Abstract

We derive an approximate local density functional for the exchange-correlation energy to be used in density-functional calculations of two-dimensional systems. In the derivation we employ the Colle-Salvetti wave function within the scheme of Salvetti and Montagnani [Phys. Rev. A 63, 052109 (2001)] to satisfy the sum rule for the exchange-correlation hole. We apply the functional for the two-dimensional homogeneous electron gas as well as to a set of quantum dots and find a very good agreement with exact reference data.

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S. Sakiroglu, E. Rasanen. 2010-06-21. Colle-Salvetti-type local density functional for the exchange-correlation energy in two dimensions. https://doi.org/10.1103/physreva.82.012505

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