Exchange-correlation orbital functionals in current-density functional theory: Application to a quantum dot in magnetic fields

N. Helbig, S. Kurth, S. Pittalis, E. Räsänen, E. K. U. Gross

Research output: Contribution to journalArticleScientificpeer-review

22 Citations (Scopus)

Abstract

The description of interacting many-electron systems in external magnetic fields is considered in the framework of the optimized effective potential method extended to current-spin-density functional theory. As a case study, a two-dimensional quantum dot in external magnetic fields is investigated. Excellent agreement with the quantum Monte Carlo results is obtained when self-interaction corrected correlation energies from the standard local spin-density approximation are added to exact-exchange results. Full self-consistency within the complete current-spin-density-functional framework is found to be of minor importance.

Original languageEnglish
Article number245106
Number of pages6
JournalPhysical Review B
Volume77
Issue number24
DOIs
Publication statusPublished - Jun 2008
Externally publishedYes
Publication typeA1 Journal article-refereed

Keywords

  • ELECTRON-GAS

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