Correlation energy of two-dimensional systems: Toward non-empirical and universal modeling

Simple item page
dc.creatorPittalis, S.
dc.creatorRasanen, E.
dc.creatorProetto, C.
dc.creatorGross, E. K. U.
dc.date2008-10-23
dc.date2009-01-30
dc.date.accessioned2026-07-07T12:46:04Z
dc.date.available2026-07-07T12:46:04Z
dc.descriptionThe capability of density-functional theory to deal with the ground-state of strongly correlated low-dimensional systems, such as semiconductor quantum dots, depends on the accuracy of functionals developed for the exchange and correlation energies. Here we extend a successful approximation for the correlation energy of the three dimensional inhomogeneous electron gas, originally introduced by Becke [J. Chem. Phys. {\bf 88}, 1053 (1988)], to the two-dimensional case. The approach aims to non-empirical modeling of the correlation-hole functions satisfying a set of exact properties. Furthermore, the electron current and spin are explicitly taken into account. As a result, good performance is obtained in comparison with numerically exact data for quantum dots with varying external magnetic field, and for the homogeneous two-dimensional electron gas, respectively.
dc.identifierhttps://arxiv.org/abs/0810.4283
dc.identifierhttp://arxiv.org/abs/0810.4283
dc.identifierPhys. Rev. B 79, 085316 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.085316
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/221258
dc.subjectStrongly Correlated Electrons
dc.titleCorrelation energy of two-dimensional systems: Toward non-empirical and universal modeling
dc.typetext

Files

Collections

arXiv