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

Authors
  • Sakiroglu, S.
  • Rasanen, E.
Type
Published Article
Publication Date
Jun 21, 2010
Submission Date
Jun 21, 2010
Identifiers
DOI: 10.1103/PhysRevA.82.012505
Source
arXiv
License
Yellow
External links

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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