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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
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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 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.

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N. Helbig, S. Kurth, S. Pittalis, E. Räsänen, E. K. U. Gross. 2008-03-04. Exchange-correlation orbital functionals in current-density-functional theory: Application to a quantum dot in magnetic fields. https://doi.org/10.1103/physrevb.77.245106

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